I don't think it will be CRV, because they are just starting to sell AKV.
I think they will do something at DL, hopefully at GC. (Not that I really care; I have no big desire to go to DL, and would probably never patronize a GCV.)
I think the next announcement after that will be something branching out from theme park related DVC's. I have no idea where. I wouldn't be surprised to see something in the Caribbean, but I also would not be surprised to see something in the continental US.
Hawaii is always a possibility, but with the trials the Hawaiian tourism industry has been through for the last 20 years or so, I'm not sure. There are probably are some bargains to be bought...but then you're facing the issues which made those properties bargains in the first place.
I think you'll see the CRV announcement in Summer/Fall-2008, and I think the price point will be somewhat higher (15-20%) than AKV, which they will still be selling at that time.