As long as the original versions of the OT are remastered, digitized and released onto DVD or whatever modern format is available at the time, I do not care what changes Lucas makes to the OT. I will still debate those changes simply because many of them don't make any sense (Greedo and Jabba scenes, for example).
That said, I have long thought that Lucas should go back to the original principal photography footage of the OT and re-do all the special effects from scratch. Spruce up the footage with the actors, but completely re-work and re-do any special effects shots.
Like completely re-do the Battle Of Yavin with new effects and make it work around the existing actor footage. Then, have John Williams re-record and update the score to ANH. That's the only one that needs it IMHO.
Would I be interested in seeing this? HELL YEAH!!! It could prove exciting. But as long as there is no OOT available, I won't support any changes, nor would I give any money for such an endeavor.