Couple of things I've been made aware of over the past 48 hours:
1. The ride is being launched much earlier than it is ready to handle in DHS. Training is not sufficient, either for operation or for maintenance. It was recommended to open no earlier than Dec 14th, but Chapek himself ordered the date remain the 5th. Even the 14th was pushing it just to get it out for the holidays.
2. When the ride works, it is fantastic, and possibly the best immersive attraction in twenty years for any park anywhere.
3. Putting everything into the Disney Trilogy has Iger worried; SW9 just finished filming with Iger himself having reordered many reshoots to try to bridge the divide in the fans. Abrams won't have the final cut finished for a few more days. If SW9 is poorly received, it could damage the ride's reception despite its incredible tech and execution.
4. Downtime could be a massive issue for at least the first month. The ride is flat-out not ready for launch and has had major issues all the way through development. Nothing has changed since I made this post back in August:
If you get to ride it at DHS, it should be incredible. But unless holiday miracles go Disney's way, it's going to be all-hands-on-deck to keep this thing running... and could be a very bumpy ride for a while.