my name is Jon, it is the first time I write and I do it from Spain, and in Spanish, then I translate it with the google translator, forgive me if something is not understood.
I had an idea, in which Luke would leave the planet ach-to, instead of staying on the island. I did not like the Jedi projection of Luke very much, I was sorry that the character of Luke did not leave at any time on the island. I thought you could take the final sequence in which you are using force and looking at the suns, to put it before the planet Crait, and taking the scene of the x-wing sunk in the water, and that luke take the ship out of the water , like yoda in Episode V, (I could do it in after effects). So we would see how luke is the same as always and lets the force in again. Then we would see some small luke sequence inside the x-wing (I could also get it with after effects), I was left with the desire to see him pilot Luke. Then in the final fight with Kylo ren, Luke would let himself be overcome as he did obi-wan, to become one with the force and power gives time to resistance to escape, and to be able to train rey as a ghost of force.
I do not know what you think, I think it can be interesting.