User blog comment:Godisme/Swords of Origin/@comment-5618441-20130122143028

Well, lets not jump to conclusions.

In the event that Kenpachi wins, Kenpachi never kills off his opponent if they become too weak for battle. Theres always the chance that Unohana might survive is Kenpachi defeats her. Point Kenpachi

Unohana is known for knowing every single type of Sword style Point Unohana

Kenpachi knows no variation of... well... anything. He has no clear strategy in battle, he simply swings his sword until his opponent dies. Unohana is abit more organized apparently Point Unohana

Unohana's mission is to teach Kenpachi the Art of Killing, which is something only she knows to the highest possible level (according to her title), so most likely she won't kill or be killed until Kenpachi gets it through his thick skull, Kenpachi on the other hand doesn't seem to want to hold back. Although we can't assume Unohana will hold back herself. But for now Point Kenpachi

If Unohana fails in battle, theres still the Squad Zero hot spring demon fellow, he originally taught Unohana everything she knows according to the man himself, and apparently Kisuke has an idea how his healing tools work. Anything taught can be retaught if he's willing. With this being said, Unohana CAN be replaced. 'Point Kenpachi

Apparently Kenpachi's Zanpakuto can (sharpen?) itself when infront of a powerful enemy (e.g when Zaraki battled Nnoritora... crap I'm sure thats not spelled right; forgot his name... But I can pronounce it >__<) Point Kenpachi

Unohana has a bankai, seeing how you can't become a Captain unless you either defeat the last captain (only seen in squad 11) and/or if you have a Bankai and a spot is open. Kenpachi is the only Captain to obtain this rank this way. Unohana most likely has a bankai, and because a Bankai is X5 stronger than a Shikai (~Yoruichi), it seems like: Point Unohana

Kenpachi knows no Kido, flash, Hakudo, or even the way of the sword (Zan- something). Unohana excels in all of these, (well idk about Hakudo). Point Unohana

Of course this is all just speculations. If you have a retaliating response that proves me dead wrong, go ahead and say it [I can take it!]