Apparently, Team Negative who worked on the 4K77/80/83 versions are currently working on tweaking the Deleted scenes themselves…
Where did you read that? I found no topics related to that on the SWTrilogy site.
https://www.thestarwarstrilogy.com/2024/02/13/star-wars-deleted-scenes-restoration-test/
Basically, he’s given it a go…