After hearing about the upcoming Third Trilogy, I started to play with my imagination about what it could be about.
I think an interesting development could be borrowed from something I read in The Lord of The Rings. I'm not an expert there, but it is told that the era of the Elves is ending, as they are leaving the Middle Earth, and the era of Men is beginning.
I think it would be cool to tell about how Luke fulfilled the prophecy (to bring balance) up to its extreme end, and opened a new Era in which the Force has left the Galaxy forever. So no more Dark Side and Sith, but also no more Jedi. Every single being has now the power to make the difference. Optimistic vision and stuff like that :)
So here is my question: could this conflict with what was told up to this point? Could the Force leave the Galaxy?