Both MS and Sony are pushing the current consoles as far as they can. I jsut hope this time around Sony uses better common sense with memory design and avaiability. The Memory has held it back for many developers. Just as logn as the PS3 doesn't hold back ARR like the PS2 held back XI to keep content similiar across the platforms. The 360 version of XI was actally a scaled PC version (complete with bugs at that point)., basically Emulated.

No doubt they will continue scalign down visuals and draw distance as well as effects for the PS3 version but doing SE art magic to make it still look good. However they shouldn't limit PC's that are much higher speced as a result.

Ps4? That depends on the core design. If similair to the PS3, they ccan use the base tools used for the PS3 and upscale for the higher memory and GPU, which means Opengl limitations. If a different design, they may need to rework the tools for it, and decidde if it is warrented based on units sold and peopel interested.