Here’s a little switch around I was thinking of. What if for a Ben lives edit we save Leia’s intervention and death for when Ben is about to resurrect Rey, it would make for a more meaningful send off for Leia as well as a nice way of keeping Ben alive.
For the Death star scene you could have a combination of Luke, Leia and Han appearing before Kylo with a v.o of “come home”.
Maybe something like RogueLeaders mockup of a faded Leia.