My theory about Waid is that he is either being given the Super-books (most likely) or he is working on a KC sequel. But that depends on if Ross is coming with him. And my understanding is that they butted heads a lot the first time around. What he plans to do with Superman depends on how much freedom he is being given. Bendis was given more or less free reign to do whatever he wanted. I doubt the new management is likely to give him that. It would be great to get BR back as Superman's official origin though!