How I might have ended the new Star Wars Trilogy - no spoilers, since this cannot happen anymore:
Green field. Slight breeze. Hills & a small Temple seen in background. Three figures standing, clad in robes. Hands gesturing. Arguing.
Luke says to Kylo Ren: “We can end this now, here, peacefully.”
Kylo says: There is no peace under that Order. Kylo points to Luke and says: “You will always be a threat - You!, AND the Jedi”.
Rey is standing opposite Kylo, and watches. Her eyes survey the situation.
Luke says “And you will always remind me of my greatest failure - a Jedi cannot rule the galaxy!”.
Kylo draws his Lightsaber, and grabs Luke, holding him hostage.
Kylo says to Rey “Do not follow me, I will return, WITH an army; from this point - neither of you are safe.”
Instantly, in a single motion, and without hesitation, Rey draws her Lightsaber, and plunges it forward…through Kylo… AND Luke in front of him! They both fall to the floor.
Kylo screams with pain. A sharp “No!”. and he begins recanting his mistakes, spluttering:
"I… tried to…live. The expectations. cough
Luke, with a thousand-yard stare, says: “Let go. I forgive you”.
Rey says “I’m sorry; I did what I had to do”.
Luke tries to look up at Rey, holds out his non-robot hand towards her face, and dies; a serene smile adorns his face.
Kylo’s expression of intense fear drops from his face, as Rey comforts him in his final moments. “What more could you have done”? Rey quietly expresses, not knowing quite what she had meant, or to whom she was referring. Kylo dies.
(or, if it is the Mortal Kombat edition, Rey reaches down while Kylo is crawling on the floor, draws a lightsaber down his back, and rips out his spine, holding it up in the air. FATALITY! Roargh!!!)
Some sort of Chinese erhu/violin music plays in the background. The End. Or something.
In her actions, Rey learns to TRULY let go of attachments, sense the situation, and has acted in a way that resolves the conflict with minimal losses. Plus there is drama and stuff.