So, the whole Kylo/Rey drama (mostly) happens in their minds. It’s a battle of wills. A force battle. Snoke is a projection of Kylo’s fantasy, that he’s gotten everyone to believe is true. Palp represents the pull towards the dark side, and the constant invitation of Kylo to Rey to join him, is her battle against the dark side.
The battle in Snoke’s room is just a fantasy. Kylo thinks he can get Rey to join him, but she doesn’t. Kylo kills Han in the middle of movie 2 or 3, for real. But then his fight with Rey in the snow, where she beats him, wakes him up to reality that he’s not strong.
You could even have Luke be (mostly) a dream/vision for Rey. They meet in real life, in movie 3, but he his lack of wanting to get involved in the First Order battle is a test for Rey. When he says he won’t fight, she becomes attracted to the dark side and starts “force talking” to Kylo. The battle on Crait happens towards the end of movie 2, and is Luke showing Rey the power of the force. She chooses the good side. In the beginning of movie 3, there are flashbacks to Rey’s training from Luke while she trains with Leia.
Once Kylo loses to Luke in the battle, and he sees Ray choosing the good force side, Kylo travels to Exegol (for real). He thinks going to the death star will give him more power and he starts fantasizing about Palp. Kylo force pulls Rey into the fantasy and she meets Palp. Rey travels (for real) to Exegol, to face Kylo in the ocean/ship battle. This battle is interwoven with the dream fight between Kylo/Rey/Palp.
In Kylo’s force dream, he experiences the true evil of the dark side/Palp and Ray is seduced by Palp. But Leia intervenes, which causes her to die, and this intervention screws with Kylo’s control of the dream, which is when Palp seemingly kills Kylo. Then Ray almost dies too. But because he loves Rey, when she dies, this distracts Kylo in real life, as he’s fighting Rey (for real) on the ship. This is when Rey stabs him on the ship (in real life). Kylo is mortally wounded, and he redeems himself, when Han shows back up and tells him it’s ok. Kylo dies redeemed and the Resistance beats the first order.
It sounds cool. Not sure if it can be pulled off.