Well the thing with Blade Runner final cut is that Ridley saved the original pieces of opticals used, done in 65mm.

You can obviously get better quality from a 70mm negative than VistaVision opticals.

I am not sure but i think they recomped the effects with digital tech, outside of the new cgi the effects were all original optical pieces.

With Digital and modern tech you can almost have zero generation loss, having things look as good as they were lensed by the cinematographer, problem is there is no final color pass on the raw footage,lol.