From what Murdy said in the Q&A, it seems like we "SHOULD" expect to see new/original content for the scenes. I'm sure the films will inspire things (or whatever crap they have in the warehouse that can be recycled), but I believe it should be 100% original.
Look at FvsJ last year for example, that had a few familiar touches, but it was definitely a 100% original maze using an IP. Of course, because FvsJ was so well done... ToT has A LOT to live up to. I also fear that Waterworld's lack of proper tent covering will hinder some amazing effects this maze could utilize.