there's not much to upgrade YET anyway. The battle for next gen is more of an upgrade in inovation(KINECT,MOVE,3D) rather than resolution, graphics and power not unless they will aim for UltraHD(OMG! Crysis in native 4230p!). Plus the fact that developers are still happy with the engine of each present consoles and some have yet to maximize(as per claim from both sides) the "potential" of the consoles
Next Generation will be needing a lot of brainstorming in improving,adding whatever it is that would be needed








