With the “two endings” thing, I found that extremely truncating the speeder battle on Crait helps a lot. You’re not asking the audience to emotionally engage in a third big battle with fresh stakes all over again, and, it keeps the energy up briefly while saving the emotional investment for Luke vs Kylo.
I like this idea, and in some other edit, I think it would work very well. However, because of what I’ve done with Finn (he’s resurrected just before the little transports fly off for Crait in my version), the speeder battle is now the only scene where he gets to do anything. I don’t feel comfy cozy removing a lot of stuff from that battle and giving Finn nothing to do on Crait.
Maybe I can salvage it a little by placing as much of the focus on Finn (and bringing back some of the footage of him that I’ve deleted so far), while leaving everyone else during the speeder battle on the cutting room floor as much as possible. I would still have to come up with an explanation for Rose crashing into him, though. Maybe I can turn it into an accident with some careful editing.
I’m not sure if it’ll work, but I’ll give some time to entertain this train of thought.