Oh, yeah, it would be foolish to think that there isn't anything else George could ruin about these movies. He could add some CG aliens to the Cantina scene (probably would be from the PT as they are alredy made) as George was never happy with that scene. We might get a new CG Jabba in ROTJ to match the one added in ANH, we could get a new CG Wampa and Taun-Tauns, the stormtroopers could get colours on their uniforms like their PT clone counterparts... Need I to continue? Didn't think so...