Here's my old list of ROTJ:SE of things I would have fixed, added, etc.
Excuse me if some of this stuff has already been fixed. I only watched the '04 DVD for ROTJ once.
1)Yoda's robes should stay when he disappears
2)When camera follows two rebels walking into command center, add upper balcony with rebels.
3)Have shot following 3POs wisecrack(exciting is hardly word I would choose) with Ackbar saying something more dramatic.
4)Make heroes shuttle different type. Like one that could support parts and mechanical stuff.
5)Add more personnel to background of hangar matte to liven it up.
6)Same with Falcon matte behind Lando
7)Get rid of Vader's dialogue " No I will deal with them myself." Just have him stop at "No".
8) Add some exotic mtns. to background of shuttle flying over Endor.
9) Add some really big trees. Make it more immense.
10) Add some environmental activity with speeder bikes as they zip along. Blowing ferns, branches, etc.
11) Edit Wicket finding Leia scene entirely.
12)In net, have R2's blade cutting through several lines
13) Add eye blinks to various ewoks.
14) Fix ewok rope as he swings across to village. In background, expand village more.
15) Give baby ewok and eye blink
16) Add background huts and flicvkering lights to dinner roast scene to make it more expansive and less like a set.
17)Digitally paint in some ropes holding R2 into shots showing him before he was set free.
18)Get rid of 3POs sound fx during story
19)Have Logray give a short speech announcing his people's plight. How his village is the last of many after the imperials have begun industrializing anbd clearing the planet for settlement.
20)Have a short reaction shot from Chewie as Logray tells this.
21)Add more of a clearing around generator compound.
22) Eliminate Vader's dialogue as he is inspecting Luke's saber
23) Digitally paint out trees around platform during Luke/Vader talk.
24) Take out trees around imperial compound
25)Quick shot showing rebel donning biker helmet outside bunker
26)Vary Emperor's starfield in throne room
27)Eliminate emperor's dialogue "An entire legion of my best troops awaits them". Save the surprise. Just have him tell Luke his friends are doomed.
28)Show an a-wing blowing up against shield
29)Show that y-wing in lower right bouncing off shield aflame as Ackbar says :Green group stay close to holding sector 327.
30)Show new shot of Imperial fleet emerging from behind Endor just before shot of person telling Ackbar there are enemy ships in sector whatever.
31)Add more fleet to Imperial armada as Falcon flies towards it right after Ackbar's "It's a trap!"
32)Fix Emperor's slugs
33)Add more clearing into bunker clearing and add more imperial troops.
34)Add alot more ewoks
35)Add CG arrows flying as they unleash them, taking out Imperial officers
36)Add new shot of ewok gliders flying through forest just before cloeup shots showing ewoks in gliders
37)Add ewoks getting blasted by At-Sts
38)Add two ewoks into shot of At-St tripping up on wood avalanche. Have the ewoks luring them into the trap.
39) show shots of imperials decimating forest with huge explosions and thusly, ewoks.
40)Make Executor impact more explosive, with internal, secondary explosions going off throughout the shot on the DS2 surface.
41)Make Anakin's face more grim and disfigured
42)Redo generator explosion so it doesn't take out half the forest