Well there’s room for one more offscreen line from where there used to be “in 16 hours he’ll start killing everbody.” If there’s anything else we want to shoehorn in there.
“He’s been planning his revenge. His followers have been hiding something for years. An enormous stockpile of Star Destroyers from the old Empire. He calls it the final order. [By the way he returned via cloning.] His followers have been hiding in the Unknown Regions, on a world called Exegol.”