It would be pretty awesome if it was Ichigo, but tbh I doubt 1/2 the captains would follow him

as any of the three 'elder captains' could tie Ichigo in knots, plot armor aside of course.
I'm assuming Rukia will show her Bankai at some point in this arc, if the previous comment proves to be real

. True Rukia is pretty weak, but I figure with Byakuya dead (*sob* most pimping captain dead... man he has some STYLE) she's the head of the Kuchiki Clan, so she can just buy her way to a captaincy
Aye true, but we all know if Yoruichi asked Soi Fon would drop to VC in seconds

, and omaeda can go suck a nut, dude is the worst character on the show.
as for Yachiru... putting aside the Zanpaktou theory for now, I think if Zaraki died she would leave the Gotei 13, I always figured she was only there to be with Zaraki, she couldn't give a flying fuck about the work

, I think she's hunt down the guy that killed Zaraki and either kill him or die trying. Then Ikkaku would take over the 11th and Yumichka would be his VC (but still wouldn't reveal his true Shikai).
I hope this arc is 1/2 as interesting as our theories

I'll be really let down if it's not.