User blog comment:Rahmaru/gotei 13 captain rank/@comment-4207271-20140205071851/@comment-5398287-20140206230043

Well, the fight between Unohana and Kenpachi happened in order to awaken Kenpachi's full power, not necessarily to kill Unohana; Shunsui was just noting that a fight between them would inevitably result in one of their deaths because of how damn powerful they are.

I've explained this a couple times in chat before, but it'd be interesting if Unohana's "death" was just one of personality, be it her normal, kindly-but-scary demeanor or her Kenpachi side, and thus she is still alive but no longer has one of those personas. The nice persona being gone might mean we could see Kenpachi and Unohana fighting side-by-side and absolutely wrecking shit, something I think we can all agree would be amazing.