This may be a dumb idea in the ears of some here, or maybe it has been discussed already:

I always had problems with the different visuals of Luke’s lightsaber in ROTJ, as there seem to be at least four designs (Hero, V2, Yuma, ISYHCANL). Seeing as Lucasfilm has decided over the last few years that the HERO version is now Luke’s official design, may it be an idea to change that in this edit?
It’s just nitpicking and maybe not worth the work with CGI, but there are at least two close up scenes where you can see that Luke has two different sabers (confronting Vader on Endor and the Emperor throne room scene).