im rewatching bleach till the end of arancar arc again and i started wondering something..
what the hell is aizen's bankai? we never saw it lol. also he has to have 1 to become a captain so why did he never use it?
does that mean he is gonna come back later maybe? which seems kinda unlikely right now but who knows.. maybe those quincy make such a mess in soul society they release or kill all the prisoners wherever they may be.