This page says that there will be 54 different ride possibilities when it opens. The hell? I really wonder how they came up with that number, as I can't imagine them making 54 individual ride films. Maybe there are a few different openings and endings, or they might be including pre-show stuff as well. Who knows.
Speculation is that there are different beginning, middle and endings and so I take that to mean 54 different combinations will be possible.