I got to ride during Saturday afternoon's soft opening!!
Spoilers ahead!!!
Don't peek unless you want to know...
The ascent was fantastic! The new script flows better (I think) and it's more conversation than lecture. Most of the scenes were just "plussed" - the old slide pictures of the mammoth hunters are gone, there are some new props in Egypt, the Greek actors are gone and replaced with a scene of a school, new music underneath the Sistene Chapel - that kind of thing.
The real changes start with the family watching TV - they've got a new living room suite and their watching the lunar landing. Then it's off to the creation of the personal computer. The scene at the top is still spectacular, then once you start downwards, well, things start to go downhill (IMHO).
The touch screen comes to life and starts asking a bunch of questions, then puts together a short animated video of what the future would look like, based on your selections. (evidently one of the characters was supposed to be an animated version of me based on a picture taken at the beginning of the ride - but I only picked up on that after reading a review of the ride on another website). I glanced around and did see that everyone was watching different videos. But there is nothing left to see the rest of the way down outside of the screen. Just black walls and ceiling. Which, if the video had lasted the whole way down, probably would have been ok. But because they were testing, I rode down the whole way backwards at the wheelchair loading speed - which meant my video only lasted halfway down. Then I just got a static screen saver to view.
All in all, a very mixed review. Parts are fantastic, but some parts really still don't work quite as well.