Jesus fucking Christ. Just stop. Fire all the fucking bean counters. Fire anyone who would say something like "She is the most valuable cinematic asset, in some ways maybe the only one, Star Wars has right now." Fire anyone who talks about writing the New Testament of Star Wars. All of you are blights on the ass of cinema.
Just tell a story about rebelling against stylish evil space wizards and gangsters. Tell a story about family. Just not the Skywalker family. Tell a personal story that resonates on a galactic level. Tell a story about how very different people come together for very different reasons to fight the same enemy. And don't be afraid to make it an allegory for real world things so that it resonates.
I'm not going to pretend it's easy, but every story I read about the future plans is worse than the last. You fuckers are going the wrong direction. Just shut the fuck up and throw money at someone passionate and visionary. Someone who is going to respect the original trilogy, but has something more to say within that massive setting.
I didn't love the prequels, but like you say with the right team he can make magic. I think he could be like creative director or something over someone doing the grunt work, so his influence would be strong, but not have him be fully, directly in charge.
I think that would work.