Lukewarm take: Kylo should not have had any sort of redemption moment in the third film. Him pushing away the idea of redemption in TLJ was interesting and a great setup for the final film.
It should have been the crew vs Kylo. No resurrected Emperor. No redemption. No god damn kiss, which in my mind is maybe the worst single moment in any Star Wars film.
I feel like the redemption could have worked with a better execution, but a full embrace of the dark side is clearly the most organic choice character and plot-wise.
Let me fantasize with my inner desire to write a Star Wars pitch, which of course sucks because I'm not a writer:
- After TLJ, Kylo Ren still feels conflict inside, he wants to get rid of the Jedi and Sith rules (like he said in the throne room) so instead of ruling over the galaxy, something that he's incapable of, he tries to fit the New Order to his agenda. He apparently becomes a space terrorist, with no direction.
- Insert funny looking aliens suffering because of this.
- Meanwhile Rey and co keep saving the day and plan to stop evil, though Finn discovers how faulty the New Republic was.
- Insert some adventure shit, just copy Indiana Jones or something.
- Mid-point in the movie you have Rey VS Kylo on some planet, I'll leave plot condiment out but the point is: she realizes that Kylo Ren may have a point. He was there to destroy some shit that the Resistance was making. "See? Everything is wrong! We should rule over this galaxy and change it!"
Combine this with Finn having doubts and you have some sort of conflict.
Note to editor: yes, I'm talking about grey Jedi.
- At the end of the fight Kylo Ren escapes, Rey's team wants to chase him but she's kind of confused about what's good.
- Insert force shenanigans and fanservice. John Williams music. Luke's ghost appears, starts talking about the force.
- Poe sends a message to everyone: apparently Kylo Ren wants to attack the planet where they hid Leia.
But hey, Finn is on that planet right now!
- The Resistance says that they have zero time so they should just escape with Leia and he's like "what about people on this planet?"
"Well people die you know..."
And he's like "FUCK YOU! I'm staying here!"
It seems like he may die.
- Kylo's army appears in the sky.
- The Knights of Ren land on the planet, huge explosions and shit, Finn tries to stop them. One of the bad guys rises a huge hammer over his head, our boy is going to die but... holy shit is that a force user? Someone is stopping that weapon! Leia? No, it's fucking Finn himself. He's force sensitive! And since he never gave up hope, he's clearly a Jedi (fuck that grey shit!). He defeats the enemy.
- Huge army of allies appears in the sky, turns out that "spark" in TLJ kinda worked!
- Insert space battle
- Insert Poe fighting some other Knights of Ren
- Rey somehow has seen all of this and realizes something. She flies directly to Kylo's ship.
- We expect to see an empowered macho but instead we find a sad, broken guy. Kylo Ren has lost his mind: he wants to crash the ship on the planet, kiling everyone and himself.
- Rey talks to him, she explains that middle grounds, half measures like "grey shit" are still dark side. And there is hope to fix everything with honest work.
- Insert lightsaber duel.
- Cut to the planet, insert some explosions.
- Kylo Ren gest defeated, Rey spares him but he commits harakiri. Also, the ship is heading towards the planet.
- Rey tries to stop it but she can't. Force Luke says "believe in the damn force"
- She does use the force to fucking deviate the ship. I know it's kinda too much but hey...
- Finn (who really doesn't care about fighting anymore) and Poe saved everyone on the planet. They will restore the Republic BUT this time it's got to be done rightfully: the ideals of the force imprintend in the democracy. Evil does exist, nazis should be punched, revolutions should be encouraged.
- Rey is now a full Jedi.
- The End
Ok so this is a huge mess, I just had time to spare.