The dev team in charge of MotorStorm is a goner (the guys from Driveclub) so I guess MotorStorm will either never get a new game release again or Sony'll hire a different team to produce it. If the latter happens, it'll feel like Halo developed by 343 Industries - not as good the originals but still fun.
Ah yes.. I'm still waiting for The Getaway 3, Sony!!