How about they just plus up the audio, either add the fountain back in the middle or bring back a central character like Uh-Oah, add great new storm effects, which would make thye original show feel more exciting and fresh...What if the storm were wilder and more epic? What if it actually rumbled and shook the floor like an earthquake?...... Plus up the exterior pre-show, add back the fire and fountain effects in the pre-show area and bring back the barker bird...Today's audiences want more immersion....that doesn't necessarily translate to IP... The original bird characters, Like Dreamfinder and Figment, are their own IP waiting to exploit for merchandising etc.
Tiki culture is alive, well, and hot right now...as they should be well aware by their wildly popular Trader Sam's locations...
Add a few fabulous looking tropical mocktails to the Sunshine Tree Terrace, and I think it would be a must-do hit.