Oh, yeah, I forgot to mention this. I did watch the Uno vs. Ishida match, and I think that Caol's back. Even if he doesn't win the whole thing (and I don't really think anybody expects him to) he'll be a force in Japanese MMA again.
Besides, Aoki is out with an injury, no? Kawajiri would be a tough fight for Alvarez though, maybe even Uno. I haven't watched the fight, but Uno was apparently very game. I was very surprised that he beat Ishida.