well first off I bet its only going to be timed exclusive. Maybe 6 months or at most a year. Kind of like what happen with GTA3.
Second, I hope to GOD that its not Oni (Take2 owns it I know, but they could be stupid and give it to RockStar to develop), I love that game and the last thing I want is for it to be PS3 exclusive or developed by Rockstar.
Third, I bet the game will suck =P
Rockstar is never going to be able to create another GTA. They have created a bunch of new series since GTA and none of them have even remotely come close to the same success.
Manhunt, Bully, Midnight Club, Max Payne, Smuggler's Run, The Warriors, Red Dead Revolver, Table Tennis... oh yes all such Greeeeat games. *rolleyes*