Really it's just the ride at Star Tours, a stage at the front of the park where I believe they are still doing some sort of character show, and Launch Bay.
Launch Bay is more or less a Star Wars meet and greet area, with some costumes/art pieces from the movies, a cantina area, and also has a short (10-15 min) show about the creators of Star Wars and the impact it has had on generations. I would give the entire Launch Bay area a max of a half hour/45 mins? Of course depending on if you want to do any meet and greets or movie, would be a little more than that.
Check the times guide or app for the daily show times for the stage show. Captain Phasma and her gang of troopers will march down the main street almost every hour which is also on the guide. There's not much action, but it's still rather impressive to watch, especially for huge fans. You can also see two troopers roaming around Launch Bay outside throughout the day demanding people move around them.
