Not really.
Uncharted 2 is rumored to be coming out in Sept/Oct.
After that... what else is there?
MAG - dunno how it will sell
Heavy Rain - lacks mass appeal. I'll be surprised if it even sells 1 million
Ratchet and Clank - The 3rd RC being released on Ps3 already. Not exactly a system seller.
A big gun like GoW or GT is needed to drive holiday sales and ensure victory.
"I don't have time to play video games anymore, but if I did, I would definitely choose the PlayStation 3 instead of the 360" - President Barack Obama