Here's my take on Tropical Hideaway. I think food service will be limited. Jolly Holiday is using all the kitchen space that used to serve both Plaza Pavilion and Tahitian Terrace. This is 1955-size space and today's Disney food service requires more kitchen space. NOS took over the CM cafe in NOS basement and kicked Club 33 upstairs. So a kitchen that formerly served five locations now serves three with more kitchen space (plus the infill building between the in-berm Pirates building and the Indy queue.
Plaza Inn kitchen used to serve Plaza Inn, Inn Between and (back in the '70s) dinner table service for Plaza Terrace (the South portion of the PI patio) besides supporting Hills Bros. table service, Plaza Pavilion, and Carnation. Now 80-90% of that kitchen space serves only PI and supports Jolly Holiday and Carnation.
Bottom line--I expect the Hideaway to serve Dole Whip varieties, maybe tropical juice concoctions, and packaged sandwiches/salads. If the Tiki Juice Bar stays, I suspect it may only serve the Tiki Room pre-show so they can eliminate the queue running down the path into Adventureland. I think this is Disney's first priority. They absolutely have to keep the path from the Hub through Adventureland as open as possible for Star Wars Land.