When that Jedi print is completely cleaned, will there still be a point to use the Blu Ray ?
The Blu-ray still generally has a sharper image and more detail. Like, if you compare the Silver Screen Edition of Star Wars to the official BD, the former might have better colors but there’s still a fair amount of fine detail that can only be seen clearly in the latter. Which makes sense, LucasFilm did have the original negatives to work with, whereas all fan-editors have are copies of copies.
…Of course, in Return of the Jedi there was that one segment of about 10 minutes where the Blu-ray was completely out of focus so Harmy just used cleaned up 35mm footage all the way in Despecialized 2.5. It’s when they land on Endor and the first few scenes taking place there, if I’m not mistaken. In that one case, the multigenerational, worn out 35mm prints were actually superior to the BDs.