Like I said, I don’t wanna cannibalize the other films in the process.
I don’t know if there’s enough footage to not touch the other films… you could try restructuring it like Hal, but I have a few story issues with that (biggest being, why would a Star Destroyer run away from a handful of light fighters and a couple shuttles?).
You could trim it down, but then you’d end up having similar pacing issues as TROS (as TFA is pretty breakneck paced already).