Board Thread:General Discussion/@comment-4161952-20130425213443/@comment-3047317-20130429224931

Isn't it more likely that Mayuri would be the more likely turncoat? Not only did he swear to get revenge on Ichigo for comparing him to Urahara, his division was practically annihilated and he has no morals whatsoever.

If someone gave him a lab, he'd side with them. He has no loyalties whatsoever. He helps Soul Society because Soul Society allows him to do whatever he wants for the sake of Dr. Insano Science. If someone gives him a better deal then that, he'll do it in an instant.

Kenpachi can't be a villain because it doesn't suit his nature. And Urahara....he did collect the souls of 100 soul reaper traitors as part of 2nd division to create HIS hogyoku, but I think he's out of his more psychotic phase.