I spoke with him 2 days ago. He has written enough material to release 5 books. He is anxious to publish but he is still editing, among other things.
I would be patient on this one. I would prefer that he takes his time and the boo ks are top quality rather than rushing it and not being so good. He didn't mention any time line for release.
He is also thinking of releasing a DVD on breaking. I will buy all of it as soon as it comes out.