As crazy as it sounds, maybe Kylo Ren slaughter in the Forest could be reused then as Endor? The fire could be explained as l, u know, battle field, FO slaughtering 🤷♂️ or Just a flashback. Damn, this sequence is Just too cool to be cut 😅
I’m not good enough at rotoscoping, but I wanted to recolour it to be on Starkiller Base after his fight with Rey. Then it could lead into him finding the Wayfinder there, and heading to Exegol as the end of the film’s cliffhanger.