One thing I’d love to see is more emphasis on Anakin / Vader. I haven’t thought all this through but what if the main villains find a way to resurrect Darth Vader? But this is purely his “evil” form. In the process the force ripples and creates a reborn lightside Anakin (by Hayden Christensen) who acts like Gandalf the White. The two forces of the Chosen One literally collide, and in the end, his soul is at rest and the force balanced.