My only real wish: Tim Schafer has shown up at all of these for the last couple of years, and they're showing Full Throttle this year (trailer already released yesterday), and I don't think they'll show anything from Psychonauts 2 (that's 2018), and I don't think they're working on another big game for that time. Maybe another trailer for Psychonauts VR (that was supposed to come out this year). Maybe another mid-sized game like Headlander.
But what I'm really hoping for - the last couple of years when Tim took the stage to announce the trailer for one of the adventure game remakes, he also announced the next title they were going to remake at the same time. They're done with Tim Schafer adventure games after Throttle and they never confirmed they'd remake the other Lucasarts adventures, but I'd love it if they announced one of them this year. They're too good not to continue. Hopefully Monkey 3 (although the hardest one to remake given the high amount of detailed animation, a rerelease would be fine with me), or maybe Loom/Sam & Max/Fate of Atlantis.
Or, big dreams, a sequel to one of the Lucas classics. Double Fine is the only company with the right people to make it happen.