If we’re throwing in things to consider that the community might be able to help with (ideas that have been thrown around before here and elsewhere)…

Adding lava to some of the Mustafar shots.
Change Rey’s line to “I will earn your FAMILY’S saber,” which just makes more sense on a few levels.
Add a line for Leia after saying “no” to Rey going on the mission. Something like “You’re not ready.” Scene feels a little awkward.
Add Finn saying to Jannah “We all have to fight” so it seems like he had some influence on her decision to join the resistance (paying forward his TLJ arc).
Change Luke’s line to “Leia sensed the BIRTH of her son,” which seems more fitting.
Give Rey a different outfit in the final scene, either all black or grey, or partially black or grey.
Recolor the saber burial cloth to be black and add a hole so it appears to be Ben’s sweater, so she’s burying things that belong to all three ghosts.