The rest of it — including the romantic relationship between Kylo Ren and Rey — reads like fan fiction.
The fact that Carrie Fisher can’t be integral to the conclusion of this new trilogy also means a shift in focus.
Rian Johnson implemented a number of fascinating (read: controversial) wrinkles into the balance of power between Rey an Kylo, and it’s very possible that J.J. Abrams follows through on what Johnson started.
But seeing as how some of these also fly in the fact of what J.J. started in The Force Awakens, I’d be surprised if there aren’t a flurry of rewrites happening at Lucasfilm as you read this.