Quote:
I wonder how they are going to pull off the backwards thing.


I saw a diagram of the track a while back - the trains go into the mountain, reach a dead end and a switch is thrown so the train backs up onto a different segment of track to another stop, then another switch and forward onto the final portion of the track.

Here's a very graphics-heavy page with tons of info:
www.wdwmagic.com/beastly.htm