So the Star Tours preview was yesterday so I'm going to try to recall my experience in as great of detail that I can:
So, when you first walk in, you see C-3PO bickering with R2 just as in the original line but with completely different dialog. To the right there is a giant screen showing all the times that the "flights" are leaving in English and Aurebesh. It also showed advertisements for different planets. Mostly footage from the prequels that I saw. I did not see anything from the OT. The next room the first thing you see is the droid pilot from the original Star Tours malfunctioning, which I thought was pretty clever, and on the other side there is a robot doing "bag checks". At the end of that hallway you see silhouettes through a window of different species and droids. Then you walk by a robot and can see yourself in thermal vision. You're definitely not bored waiting in line. When you finally get to the boarding area and you get your "flight goggles" you proceed to the doors. Then, just like before, you watch a boarding video telling you not to do anything stupid pretty much. It is much like the old one just newer visuals. Finally, you get onto the ship, I was front row, 3 seats from the end. First, you hear C-3PO's voice arguing with R2 who was on a screen to your right. The blast door comes down to reveal that C-3PO is going to be the pilot. Apparently there are 54 different possibilities that can happen during the trip. Ours started off with the millennium falcon in front of us in a docking bay, I think it was supposed to be the scene where Luke, Han and Leia are escaping from the Death Star. A bunch of storm troopers were walking around and a little droid flew up to our view screen and "scanned us for rebel spies". It held up a photo of someone on the ride. Alerting us that he was the spy. Immediately we blasted off, following the Millennium Falcon out into space dodging a bunch of TIE fighters, which was pretty exhilarating. Then we went into hyperspace and came out just over the surface of Kashyyyk. reminiscent to the speeder bike chase in Jedi, we blew up a couple scouts and accidentally a wookiee bug plane thing causing a wookiee to hit our windshield and slide off. we flew higher and went to lightspeed again (with the blue hyperspace tunnel) while in hyperspace we received a transmission from Admiral Ackbar telling us to return the rebel spy to the base or something and we came out in a battle over Coruscant with the episode 3 X-wings flying around. We followed them a while watching them blow up some enemy fighters. I don't remember if the were Empire, keeping continuity or Seperatist which wouldn't make much sense. A couple "buzz droids" landed on our ship. When R2 got rid of them we made a dive toward the ground and just barely pulled up before we hit ground , dodged a couple ships flying around and landed on a pad in Coruscant, ending our ride. The ride was only a couple of minutes and I wish we would have gone to more OT planets but overall it was a great experience and is easily the best ride at disneyland if the 54 different events thing is true.
Edit: Forgot to mention a couple things: There are 6 different cars and unfortunately the original ride is not still running as far as I can tell.