User blog comment:AYET/Strawhat Pirates Armada/@comment-3177945-20130506150500/@comment-4754162-20130507014229

"The way you're saying would make luffy never be able to be a yonkou"

Indeed there, I don't see Luffy being a Yonko because that will simply contradict his idea of being free and adventure. Being a Yonko, in a way, is kind of like being tied down (a.k.a not achieving complete freedom) because you will need to manage a ton of people, a bunch of territories and external threat to challenge for your land or name. I am not a supporter of the idea "Luffy being a Yonko", even after his challenge with Kaido, BM or kicking all the current Yonkos' a$$.

As for your last statement, I think there WILL be a huge war near the end of the series. Oda has somewhat hinted about it and it will occur as you have mentioned - Luffy commanding all his allies he befriended along the way into the final war!