As said ThatGuyWhoEdits, it would be interesting an extended fight of luke and kylo with doubles, and green lightsaber.
THE IDEA:
Luke goes to the snoke ship, and faces Kylo Ren after the death of Snoke and his guardians. Then, luke uses the force to crash the rebel ship against the supremacy, and kylo kills luke, and luke becomes one with the force.

password:luke

P.D: Sir Ridley… a wonderful job with yoda …
if at some point someone needs help with something, tell me, I will be happy to help from the Basque country, in spain