In an attempt to limit the question to: "Are we there yet?", Harmy has said at some point in this thread that ROTJ 2.0 will be GOUT-free, so while DrDre's new GOUT upscales are impressive, they are unneeded, at least for this film. Probably not needed for any films at the rate -1 is progressing.

Re: 1080p, also unlikely. Going to 1080p would involve 1) re-despecializing every scene, and 2) no longer using the Blu-rays as a primary source, since all you get above 720p for those is sharpening artifacts. Never say never, but I'm not holding my breath.