We vary on a few of our respective ideas/wants, Tank, but the important stuff I think we agree. Even the ones that are different, I like your ideas.
I especially like that you pointed out there needs to be clarification on the geopolitics of the galaxy. I understand that in TFA, the First Order destroyed the Republic Capital, Hosnian Prime and other planets. But what about Coruscant? Was it also destroyed at some point? Is it still in First Order hands? How much territory did the First Order have at the beginning of TFA? I don't know why (maybe influenced from what I knew of the Imperial Remnant from EU?), but I assumed that the First Order had a minority of territory. There was at least enough territory for the Republic and the New Order to have a Cold War, so it implied to me they were nearly equal in power. Now it seems that with destroying Hosnian Prime, they somehow captured the entire galaxy. I know losing a capital planet and a few others is a serious blow, but the Republic now being destroyed by the beginning of TLJ, doesn't seem to match the end of TFA. Like you, I would be happy with just a few lines from C3PO in front of a map explaining this.
I also like how you point out that perhaps Rey's vision of the Knights of Ren was the future, not the past!
We also agree on Luke's ghost returning to confront/haunt Kylo. I know you like Excalibur, too. What do you think of my idea to draw inspiration from Merlin?
As to Jedi Rey, I WANT this! I want her to establish a new order. But as Yoda points out, she knows what she needs to know. I'd like her to establish a new order, with new rules. Maybe not even called Jedi? But definitely light side force users.