A few more ideas:
Correcting the Falcon's shadows on the bigger asteroid
Correcting the colouring of the TIE fighters in the asteroid battle scene (over-blue, doesn't match the rest of the scene)
Recolouring some of the asteroids so that they match (some are reddish or somewhat bluish)
Possibly removing the scenes with Han, Leia and Chewie walking inside the space slug, outside the Falcon (realistically, they don't just need oxygen masks and tanks in there, but also proper suits to withstand pressures and temperatures, even if there is an atmosphere inside) and leaving it to landing, trying to make repairs inside the space slug, then having the Falcon shaking and leaving the space slug immediately. With the TIE fighters destroyed, the chances of getting another fleet of TIE fighters there before the Falcon are low (the other TIE Bombers are probably on the other side of the asteroid now
)Revising some of the scenes showing (the whole) Cloud City
Removing the new CGI approach and replacing it with an all-new approachscene from behind the Falcon (I agree that the Falcon seems flat there) if you can manage it
(e.g. reusing the shot of the Falcon approaching Yavin in ANH but sped up and retimed, adding cloud cars and finding some background scene to go with it)Although many people may disagree with this, removing the 'galaxy' at the end appears to be a hard choice you may have to make (unless you replace the galaxy with a larger image similar to this image)
Recolouring the scenes inside the frigate in the finale (purplish glow) LINK to image
Have a few tears fall out of Leia's eyes as the Falcon launches, make her show her feelings
I also noticed something -- the TIE Fighters you used in the Death Star introduction in ANH -- were they taken from TESB's shot with the Executor approaching Hoth?