Oh man, I didn't realize he left the book, only now just noticed there's a new guy on it. So yeah that's a surprise, and I guess that does mean it'll be sooner rather than later. Especially considering that not only Snyder doesn't really have any other projects at the moment, but Capullo hasn't really been doing anything since he went "exclusive", so he must be working on something.
I do have a feeling at the very least we won't have to worry about City Of Bane ending on a "cliffhanger", considering it seems like the story got a lot of re-juggling so that it could be considered an ending, while Bat/Cat can be seen as both a long epilogue, and its own separate thing. Also yeah I don't expect the Weeks special to happen until after Bat/Cat starts getting solicited, since that seems like something he's gonna take his time with now that there's no deadline.