Originally posted by: el_boss
Edit: I watched the preview again and it is without a doubt Urahara.
The scene of Urahara in his captains robes seems to be a flashback, since he isnt' a captain. The scene of Ichigo's Bankai crossing with another sword at the execution grounds (after seeing Ichigo lying behind Aizen who is holding on to Rukia) is without a doubt Ichigo. (EDIT: Frogking posted the screencaps above while I wrote this)

Now that I've recovered from the shock of this episode...Wow, I have to say it was really well done. Hitsugaya's Bankai was so cool. To me, it doesn't matter that he got his ass kicked by Aizen because Aizen is obviously the insanely strong bad guy that only Ichigo can defeat. Tite chose a good way to show off Aizen's power by having him fight such a badass Bankai, and I'm glad he didn't kill off Hitsugaya (at least I hope not...). I hate that HInamori died, and Hitsugaya had to discover it like that (was that flash step he used? XD), but I'm glad she died happy, being able to see Aizen again.

I'm disappointed that Tousen is a baddy, but it was an awesome twist. I wonder how many others are in cahoots with Aizen and Gin.

Oh, and about Aizen's soul slayer's power. Can anyone who has read a better translation explain it a little more clearly? I think Dattebayo made a bad choice in using the word "release" too many times - as it could be refering to how Aizen released his Zanpakuto (into it's Shikai/Bankai form) or released as in "dropped the illusion" (released those being affected by it). So, how exactly does it all work?? What I'm getting is that anyone who sees his soul slayer basically sees whatever they want him to see until it is..."released"