I’m interested in the story Lucas had in mind for Luke, if he even had come up with a story arc beyond new female student shows up and Luke is reluctant to train her. I’m not interested in the Midichlorian world and i’m glad Disney said no to that.

I’m fine with the story we got for the sequel trilogy. But they should have filled in the story of what happened between Return of the Jedi and Last Jedi. We never got to see Luke as a Jedi master or to rebuild the order, we never got to see the New Republic and how Democracy was restored.
They never said where the first order came from or what happens to the remnants of the Empire.