I agree with what most have said....
New Graphics but the same [GR] gameplay
EASY MOD SUPPORT [GR] STYLE ( thats a big one for me if you couldn't tell )
Mod tools out of the box to allow mods to be made faster
GRAW style kit selection ( love [GR] but like the custom kit option GRAW offers )
hell id be happy with the same old [GR] but new graphics.... kinda like the Crysis custom visuals tweaks that are all over the place...