The standard next gen game's graphics won't be vastly superior to the best of today.

[Kantor]

I think we'll see a moderate jump.

The best graphics we see this generation (things like Uncharted 3) should be easily run at 60fps with anti-aliasing in an average game. The best games will look considerably better, comparable to Crysis 2 on PC.

People say that graphics can't get much better than Uncharted 3, Gears of War 3 and Heavy Rain, but you have to remember that these are standout titles with extremely high production values. The majority of games honestly don't look that great.