I think it would be interesting if they kept it exactly the same...BUT replace the D-Pad and the square/circle/triangle/X areas with touch screen surfaces.
That way developers could use the standard setup, or create custom ones.
Platinums: Red Dead Redemption, Killzone 2, LittleBigPlanet, Terminator Salvation, Uncharted 1, inFamous Second Son, Rocket League







