Gosh there are a lot of posts here, so I am probably repeating (sorry) but two things that stuck out to me in the list that I think you should NOT do:
Ewok eyes - they SHOULD blink. Greedo and others got to blink in revisited and it’s arguably a more important feature for the “lovable” Ewoks
The Dug in Jabba’s palace - I think it should be kept, similar to putting in the shot of the battle droid in ANH, it’s good for connecting the prequels texturally (or whatever)