What should have happened was Rey convincing Luke to RETURN as a Jedi, not the crap we got in TLJ. Luke should have sacrificed himself so Rey, Chewie, and R2 could escape. He should have faced Snoke got killed, but when Snoke thought that he killed Luke, blam, Luke stabs Snoke in the heart, and then Rey should have confronted Kylo. Rey hears Luke and he tells her to use the force and look for her opponent’s weakness. She does, and gets away again, but at the loss of Luke. Something like that I would have loved to see.

It’s kind like, what if Yoda had went with Luke to cloud city, and the Emperor was there.