[@AHeartlessNobody] Let's keep him alive. I don't want to follow the sequel trilogy too closely. I also might keep Snoke alive.
[list][*]Here is my interpretation of what could happen. 
[list][*]Ben destroys Luke's new Jedi Order whilist keeping Odette alive by putting her to sleep. With Luke beneath the rubble of his hut, Ben begins to flee but is confronted by three of Snoke's Knights of Ren. They convince him of his destiny playing on the fresh betrayal of his master. Que the completely destruction of New Jedi Order with him "hoping" to recruit a few friends. As he assumes almost instinctual command of the Knights of Ren, Ben halts them to go retrieve Odd only for her to be missing. He's heartbroken at the hologram and catching an unassuming Knight of Ren off guard, chokes him up with overwhelming Force power and accusative bellows. They realize then and only then why Snoke sought out this "Jedi pup". 
[*] A Timeskip occurs pass TFA. Between TFA and TLJ, Kylo Ren searches for rumors of Odette through the thinnest shadows, feeling her presence in the Force. Which is why he was so upset at the First Order officer upon his explanation of the girl and droid so long ago. 
[*] TLJ ??? I would like Luke to stay alive and do more. For instance perhaps [b]he[/b] kills Snoke and Kylo Ren, so goes his beaten ideology of letting the past die. He maims Luke horrifically. Before killing Rey and taking his place as head of the First Order. His first line of duty is finding Odette so that he may finish snuffing out the light and destroying the strongest and last vestiges of his past: Odette.[/list][/list]