John Crichton said:
Yes, he has said many times that SEs will not be made for the new flicks and given reasons. But history tells a different story.
In about 10 or 15 years:
Lucas: "You see, when we made Phantom Menace, we didn't have the technology for Darth Maul to wield a 4 bladed lightsaber. . ."
"Here, we didn't think we had quite enough Gungans in the scene, so now we inserted extra gungans and put Jar Jar in the background of almost every shot"
"That old CGI from back then looks so fake, so we are completely re-releasing the movie with new modern CGI"
Lucas is a perfectionist, that quite honestly doesn't know when to leave well enough alone. Ben Burtt, his sound designer, has said he expects until the day he or Lucas dies he'll still be getting calls about wanting to remix the sound in one scene or another, or to try and get an even better sound effect for a certain action, and that's from a man who's know and worked with him since the OT. A librarian friend of mine told me that when Lucas released the Special Editions, he tried to get the Library of Congress to replace their archival copies of the trilogy with the Special Editions, since they were the "real" Star Wars, the LoC politely refused on the historic grounds that the OT was put in their on.
We'll likely see the occasional new remix, re-edit, or new edition for the rest of Lucas's life. Even the "way things were supposed to be all along" has changed. In the original release, Luke didn't scream when he fell from the catwalk on Bespin, in the Special Edition we let go of a long scream as he fell, then in the DVD "Extra Special Edition" release, that scream is gone now. So, he was supposed to have screamed "all along" until 2004? I'm trying to restrain myself on the Han Shot First while I"m at it (and even the subtle changes to that scene in the DVD release too).