This will be used for an update of 4K77 that williarob is currently working on. It will be a big upgrade on top of the color - no more upscaled Blu-Ray frames, no-DNR and DNR will be brought into the same “fork” so updates to one can be applied to the other easily, some redone/additional cleanup, etc.

I don’t know if there will be zero frames from the new 4K UHD Blu-Ray, but since the team now has a 4K scan of a 1997 SE print, that is possible. But at minimum there will be no more 1080p upscaled frames.