Not to brazenly steal from the Tiki Room, but why not a version where the show is the constant, and the audience is moving? Could they craft a 7-minute show that allows for backstage social distancing, and then in the viewing area just thread a massive conga line. When the front of the line gets to the final spot, everyone stops where they are, turns to the stage, watches the 7-minute show standing, and then shuffles off afterward to be replaced by the next conga line. The mini-show could repeat like every 15 minutes.
Not that I think they are actually planning this. Just armchair imagineering.