User blog comment:Silver-Haired Seireitou/Sei-san's Classroom: Chapter 497 - Kill the Shadow 2/@comment-4509522-20120621134013/@comment-2089817-20120621161523

I agree with all but one of those points. I think it'll be Blondinekurl (or Seishima, whatever you wanna call him) who uses the Bankai, since he seems to be the "monitor" or "collector" of the used seals.