I'm gonna throw this out there and say that my fingers are crossed that Disney has consulted Robert A. Harris on this restoration. Remember that he offered to do a restoration on the original trilogy for free. On top of that, I believe he's pretty good about keeping mum on projects.
I'm perfectly happy to be proven wrong, given that Reliance Media might be involved. Either way, I think Disney will give us the best presentation possible and not just do a 4K DNR hack job.