A well conceived crawl. After thinking about it, I agree that the brother/sister angle is unnecessary. I like how evocative ‘war hero Leia Organa’ is, but I would wonder why she seems to have so little power given that everyone we see has a high opinion of her.
Calling Snoke a ‘mysterious leader’ makes it even more apparent that we should learn more about him during the movie, which of course never happens. I feel like going in the other direction and making him simply a power-hungry warlord would be the best option, that way nobody expects a twist that never arrives (unless JJ pulls something in Ep 9).
Other than that, it’s a propulsive and exciting crawl.