What gaming system is Sly 4 going to be on

I'm guessing PS3, it would probably stay in the PlayStation series. But who needs a $500 blu-Ray Disc Player
Yeah I know. For all you people worried that it won't be for PS2, and that you'll be forever separated from all Sly Cooper games 'till you buy a PS3 or whatever, it WILL be for the PlayStation 2. So don't go nuts.