User blog comment:Fintin/Decken and Jones/@comment-3362155-20110317134338/@comment-3242083-20110317140023

What definitely speaks for big mam becoming a villain is one simple thing: If things stay like it is, the Straw Hats will have it WAY TO EASY in the New World.

Let's observe how they will enter the second half, the "hell" of the grand line:


 * Luffy is the "protege" of Shanks, one of the most powerful forces known, with him being a Yonkou. And since the war at marinefold, everyone and their mum knows about their relationship.


 * The remnants of the Whitebeard pirates consider Luffy like it would be Ace himself and promised to protect him at all cost. While the fate of the WB pirates is uncertain at the moment, I can't believe a group like that will simply disband. Marco probably took over...maybe under a new banner. It would fit the theme of the phoenix, rising from the ashes.

So yeah, Luffy did basically nothing, but starts with 2 allied Yonkous into the New World. Which other Super nova has/had that luxury?

I'm quite confident that Kaido is a real sneaky bastard, but one Yonkou isn't enough with the above factions backing you up. Blackbeard? He doesn't care about Luffy at all, and I don't even think that Luffy cares about Blackbeard. He wasn't the one who killed Ace, Akainu was. He gave BB a good beating at Impel Down, but moved on after.

So much text, just to underline: big mum probably turns out to be the mastermind, possibly even teaming up with Kaido, disrupting the "balance" of the world.