I really dont know why people are expecting every next-gen game to be at 60fps...?
Each generation passing, the less 60fps games we have. So we should get less 60fps games than the current gen we are.
Except next time they will want to push 3D, so perhaps next time we'll see more games which render at 60FPS.
On something else:
Hypothetically would it be bad if they simply upgraded the GPU hardware and left the CPU pretty much as-is for the most part for next generation hardware?
Throw in another core, add another MB of cache and implement hyperthreading and they're done? (At least on the Xbox 360). If the GPU can be made to multitask then why not have the CPU hanging off the side of what is effectively a massive ALU array? On 28nm the CPU itself could be very small relative to the GPU and make up less than a quarter of the overall transistor budget.