Given that they have to keep the Shattered Fortress stuff rehearsed, and that they already threw in some new stuff for the 10th Anniversary tour, I doubt that they'll change up the set too much.
As for Falling Back to Earth specifically, I was happily surprised they left that out. Don't get me wrong, it's a stunning song and I love seeing it, but they played it at every show on both US tours so far, as well as in at least one set on all three cruises they've participated in. And it of course is lengthier and I'm glad to have fresh stuff in.