I'm hoping they simply transfer theatrical prints in the best condition and then do minimal cleanup. So that we could see the films exactly as they looked like in theaters. Now it wouldn't look as good as going from the original negative but there's always the question of what things if any, need to be recreated, such as compostions and color timing adjustments.

If people want the digitally restored from the negative version, they could always watch the new versions.

If Disney uses a theatrical print, there's far less ways to screw it up. Otherwise they might miss subtle differences or changes. EX: Right before the first lines in Star Wars, wasn't the camera shake on the Tantive IV enhanced during making the prints? So that it would be steadier on the original negative?

I just think the people who really want to see the unaltered versions aren't the type of people who have to have their movies ultra restored with no dirt and grain whatsoever.