User blog comment:Torquil/What should Luffy's gear 4 be like? ?(If you think he is going to get one...)/@comment-4164499-20121217092732

I doubt that, he already have gear 3.

Anyways,this guy here have some quite good ideas. Credits to some revan2009:

I’ve tried to base my theories on Luffy’s character development and stuff associated with Luffy, primarily things he finds fascinating, such as guns on here and here.

There was also an indication that he would become a DF user as anchor <span class="IL_AD" id="IL_AD1" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">suggests. (source)

Some may argue that he held a small dagger yet didn’t become a swordsman. In my defence, I’ll say that authors construct hints and foreshadowing that aren’t obvious.

 New G3 + CoA powers = explosive impact, heat, shockwaves

Due to size of Luffys fists, theoretically, it could enable Luffy to create a explosive physical attacks, shockwave and heat, upon impact. If arrows imbued with haki can produce rock shattering impacts (source)

Then it’s believable for Luffy’s G3 + CoA to be able to produce explosive blows many times stronger than Mr 5s hits.

Explosive shock waves can cause situations such as body <span class="IL_AD" id="IL_AD6" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">displacement  (i.e. people being thrown through the air), dismemberment, internal bleeding and ruptured eardrums. Shock waves produced by Luffys explosives have two distinct components, the positive and negative wave. The positive wave shoves outward from the point of impact, followed by the trailing vacuum space “sucking back” towards the point of origin as the shock bubble <span class="IL_AD" id="IL_AD5" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">collapses  back on itself allowing possibly another punch? An awesome ability for Luffy no? We saw how giant Buddha Sengoku was able to shockwave (source)

I mean what relation are there between statues (SG’s DF) and shockwaves? None that we know of. Perhaps it’s a result of giant body + G3?

A thermal wave is created by the sudden release of heat caused by an explosive impact of Luffy G3 hits. Luffy’s CoA would ensure he isn’t burnt by his own abilities…

G2 + G3 = G4
I’m almost sure Luffy would think G3 had 2 major weaknesses, he even admitted it and we saw Lucci comment on speed (source)

Disproportionate size of one limb exposes other limbs to injury as illustrated and exploited by Lucci (source, source, source)

How to overcome that weakness? If Luffy can distribute air/haki energy into every part of his body, he could become as big as Oz or White beard and muscular, kind of like the fan fic pics we see of Luffy. If Luffy can use G2 on any part of his body at will, then he could’ve possibly trained his G3 to use on every part of his body. Due to the fact that every major opponent he comes across would be extremely fast, he would need G2 speed to overcome what Rob Lucci accurately deduced as G3’s weakness: speed. Luffy has already used G2 + G3 together before, just not at the extreme of total bodily G3 and G2… which I’m sure he/Rayleigh has identified as a weakness. ===Devil Fruit === ====New G2 + CoA powers = Plasma beams, plasma armour ==== <u data-iceapw="2" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Plasma beams Luffy has a fascination for beams (source)

<p data-iceapc="1" data-iceapw="94" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;"><span style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Perhaps Oda has been foreshadowing Luffy’s future plasma based techniques for many years? He’s known to have done this before a few times. In order for Luffy to use plasma beams he needs to use plasma armour. <u data-iceapw="2" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Plasma armour In the G2 form, his metabolism rate is so high that his sweat vaporizes rapidly giving rise to a steaming appearance, and his skin turns slightly pink from the increased blood flow. I believe that haki (i.e. colour of armour) could enable to him utilize plasma/fire based abilities without getting burnt by his own abilities..

<p data-iceapw="82" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;"><span style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">G2 steam and CoA mixture enables usage of plasma based attacks, and simultaneously envelop himself in a shield of plasma. In physics and chemistry, plasma is a state of matter similar to gas in which a certain portion of the particles are ionized. The basic premise is that heating a gas dissociates its molecular <span class="IL_AD" id="IL_AD8" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">bonds, rendering it into its <span class="IL_AD" id="IL_AD7" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">constituent  atoms. Further heating leads to ionization (a loss of electrons), turning it into a plasma: containing charged particles, positive ions and negative electrons.

<p data-iceapw="96" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;"><span style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">The presence of a non-negligible number of charge carriers makes the plasma electrically conductive so that it responds strongly to <span class="IL_AD" id="IL_AD5" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">electromagnetic  fields. Plasma, therefore, has properties quite unlike those of solids, liquids, or gases and is considered to be a distinct state of matter. Like gas, plasma does not have a definite shape or a definite volume unless enclosed in a <span class="IL_AD" id="IL_AD4" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">container ; unlike gas, under the influence of a magnetic field, it may form structures such as filaments, beams and double layers. Some common plasmas are stars… symbolic… considering Sunny in relation to Luffy… more foreshadowing…. perhaps

<span style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;"><span style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">

<p data-iceapw="16" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">I believe that Luffy will develop his basic <span class="IL_AD" id="IL_AD6" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">levels of  haki to achieve secondary and possibly tertiary abilities.

New Colour of Observation technique = Psychometry, [achieved: Precognition]
<p data-iceapc="1" data-iceapw="51" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Luffy can only ‘observe’ <u data-iceapw="1" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">intent  of living things at relatively close distances. But cannot observe inanimate objects judging from Enels failure to land a single blow on Luffy (note: objects manipulated by people don’t count) since he/objects have no intent… and Luffy mimicked inanimate objects to avoid injury here: (source)

<p data-iceapw="13" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">And as he bounced off his punches against Enel here: (source, source)

<p data-iceapw="19" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">There seems to be more to CoO though which amplifies CoO power of perception; evidence is Roger and Zoro.

<p data-iceapw="18" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Rayleigh says that Roger couldn’t read poneglyphs therefore no amount of normal CoO would reveal anything: (source)

<p data-iceapw="22" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Instead Rayleigh claimed that, Gol D Roger was able to comprehend and “hear the voice of all things”… i.e. poneglyphs: (source)

<p data-iceapw="26" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">I would infer that, psychometry allowed Roger to sense weakness, strengths of people or comprehend inanimate objects such as DF’s or as Zoro demonstrated; the <span class="IL_AD" id="IL_AD4" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">breath of  steel.

<p data-iceapw="75" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">Psychometry – the ability to sense/understand/read objects merely touching the object or standing relatively close to the object. Psychometry (from Greek: “spirit, soul”; “measure”), also known as token-object reading, or psychoscopy, is a form of extra-sensory perception characterized by the claimed ability to make relevant <span class="IL_AD" id="IL_AD5" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">associations  from an object of unknown history by making physical contact with that object. Supporters assert that an object may have an energy field that transfers knowledge regarding that object’s history.

<p data-iceapw="57" style="padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">In terms of battle advantage, Luffy could learn to observe opponents DF’s weakness due to close proximity with the person who ate the devil <span class="IL_AD" id="IL_AD8" style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px!important;padding-right:0px!important;padding-bottom:1px!important;padding-left:0px!important;border-bottom-width:1px!important;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:14px!important;vertical-align:baseline;background-image:none!important;background-attachment:scroll!important;background-origin:initial!important;background-clip:initial!important;border-bottom-style:solid!important;border-bottom-color:rgb(54,130,223)!important;text-decoration:underline!important;color:rgb(54,130,223)!important;cursor:pointer!important;position:static;display:inline!important;float:none!important;font-family:'TrebuchetMS',Helvetica,Arial,sans-serif!important;font-weight:normal!important;font-style:normal!important;background-position:0%50%;background-repeat:repeatrepeat!important;">fruit. In extreme cases, he could even observe seas/wind. Perhaps this is the ability Nami has been using subconsciously whereas Zoro learned to use psychometry in Arabasta: (source, source, source, source, source)

<span style="margin-top:0px;margin-right:0px;margin-bottom:0px;margin-left:0px;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;border-bottom-width:0px;border-left-width:0px;outline-width:0px;outline-style:initial;outline-color:initial;font-size:10px;vertical-align:baseline;background-image:initial;background-attachment:initial;background-origin:initial;background-clip:initial;background-position:initialinitial;background-repeat:initialinitial;">