I'm curious as to what kind of set-list will they arrange for the next tour(s). It seems to me like they've enjoyed experimenting in that department. So, they did rotating set-lists in the past, they did a fixed set-list paying tribute to 2 older albums, they did the 'one song per album' set-list, now they are playing the new material exclusively...
I guess other possibilities could be a set-list of never before played stuff, but there's not that much of it, so that wouldn't really work, would it? I'm convinced that they'll play the 12-step suite on MP's birthday show next year, but time will tell. There could also be an all-acoustic tour, but I think I watched an interview a few years ago in which John said that an unplugged show wasn't likely. An instrumental show is probably not going to happen either, seeing how much comfortable James is feeling the band, and how much he is being praised.
When the "Enigma Machine" video was released, I was surprised by the choice of dancers/choreography for a heavy prog instrumental. So, I thought for a while that they would team up with a dancing/theater company and create a choreographed show. That didn't happen, obviously, but with the recent interest we've discovered John has for theater/musicals, and the talks about a musical around The Astonishing, I guess that could still be possible.