The only thing I 100% expect to be announced is SOMETHING at Epcot. There's too much brewing for literally nothing to be announced IMO... rather it's just a Ratatouille announcement, just a Guardians/Tron announcement, a new WS pavillion, etc.
As far as anything at MK, DAK, DCA, or even anything at DHS outside of Toy Story/Star Wars... that's a lot more iffy.