User blog comment:Salubri/Aizen, Yamamoto and Wonderweiss/@comment-1297053-20100226130517

I think there's still a chance for us to see Kyoraku, Unohana and Ukitake's bankai sometime soon. Aizen stated that the hits he dealt to the captains probably wasn't even enough to knock them unconscious, so that's kyoraku still possible. Unohana is likely trying her best to save Hiyori, but that shouldn't take her very long, being the foremost healer in Soul Society. Ukitake failed at life when he got stabbed by Wonderweiss' hand, so if that's him done for the rest of the arc, I will be extremely pissed off.