The blue saber fix in the training on the falcon scene has some black flicker towards the hilt in several shots.

I noticed this black flickering near the bottom of the blade during the Falcon training scene a few years ago while watching the 2004 dvd. If you look at the same scene in the GOUT, you'll see that the original effects did not have this error; it's a screwup caused by glitchy digital re-composites. Accordingly, I think it would be a good idea to fix it for the new version.

What is absolutely in need of fixing, though, is that the colours of the interior of Vader's TIE fighter cockpit are wildly inconsistent. In the original every shot had the lighting as a strong red with the same saturation level, but in the 2004 version about half these shots have become pink, and some of them are so desaturated that they're almost colourless. Usually this is just for the Vader shots, but sometimes it happens to his wingman also. I would very much like to see these corrected for the new version.

By the way, I'm considering making a new version of the 70mm mix, so assuming that it turns out to be a worthwhile improvement, it would be cool to have it included on the next release. ;)