We all know about Sosuke Aizen's super-ultimate-unstopable shikai:
...So WHAT THE FUCK can he possibly have as a Bankai?
Honestly, I can't wait, CANNOT WAIT, for the chapter that ends with Aizen saying "Ban-Kai." Honestly, that should probably be the last page of the entire manga as there is NO fucking way that anybody is going to beat even his shikai. As much as I would appreciate actual predictions, please feel free to get as ridiculously stupid as possible with suggestions for Aizen's bankai. With Kubo's trolling as of late, I'm ready to believe just about anything.