Re: 0th Division
Yeah I hope 0 squad comes, I just know Isshin was the ex captain of it as think about it no one knows of a Isshin Kurosaki, no one even thinks his spirit pressure seems familiar and the Shinigami that said this are well over a 100 years old and there was never a Isshin mentioned by the other captains.
plus I find it to convenient for Kisuke, Yourichi and Isshin to live in the exact same town, the exact same town that was meant to be used as a key into the kings realm personally I think Isshin was either sent there by the soul king to protect it.
And also does anyone get the feeling Isshin is a lot older than he's letting on...you see it every now and then like when he battled Grande fisher he talked to him as if he was a boy.
Then there's the 12th captain before Urahara forgot her name.
Other than that we can speculate Ginrei I feel is in there as well.
Also didn't they say that being in zero division was like a promotion from being a captain perhaps they are promoted for separate skills.