Since it was more general stuff leading up to the 50th, I though I'd put this post from
@Magic Feather here
So, prior to the 50th (in addition to Pandora, Toy Story, Star Wars, Mickey LPS ride), perhaps we'd see the GotG ride and Ratatouille open in Epcot. I'm guessing that would be in the 2020 timeframe for an opening
For the 50th itself, s/he indicates that they would be other Epcot offerings (a new country maybe? or other country getting a ride? FW improvements, at least with Innoventions?) . DHS might get other stuff and maybe something at DAK.
What would "the bulk" be at MK? A new potential ride in Tomorrowland has been hinted, in addition to a Stitch replacement. Quite possibly a new light parade and/or fireworks show. Perhaps new attention turned back to Frontierland for an attraction?