Already I can imagine the huge winding-around-the-block lines of theatergoers, only instead of cosplaying as Luke and Leia and Han the superfans are made up like Kermit and Fozzie and Miss Piggy. All it takes is a little nudge of the timestream....
Muppets doing Shakespeare & light operas…
The Dark Crystal, Labyrinth, et al getting sequels…
And showing him some of the Disney Broadway puppetry they’ve engineered. Or feeding him some of the Thunderbolt Fantasy/Pili puppetry shows & Japanese Tokusatsu movies.