Something I was thinking about adding - would there be some way to depict the Sith Destroyers beginning to leave Exegol? It would add some decent tension to the sequence (“Guys, it’s starting! We’re out of time!”) and it would help to establish how so many Destroyers have already traveled to other planets for the ending montage, when the whole battle is framed around the idea that “We have to stop them before they leave.” (Except for the one ship that blows up Kijimi.)
It could be easily done by recording a new line of dialogue from a random Resistance pilot somewhere - “Did you see that? Two of them just jumped into hyperspace!” - but I wonder if there’s some way of repurposing footage to depict it visually?