Essentially, he's changing the Original Trilogy to be in accordance with the Prequels...which is obviously completely assinine. You wouldn't have a child then have another one and change the first one to be like the second (slightly confusing but think about it). I always hear "Lucas intended it to be that way..." Bullshit. He did not intend to have Greedo to shoot first (or he wouldn't have filmed it and released in to theaters and home video for 20 years the way it was). He didn't intend to have the Emperor be McDiarmid in The Empire Strikes Back (he at least didn't intend to have him be Palp til ROTJ). He didn't intend big digital creatures walk across the screen and droids smash each other around (think mos Eisley). He's just changing his mind about things and you just don't do that when you've relased a movie and it's been around for more than 20 years.