The upcoming Disney+ original series, Star Wars: Andor, is a prequel to Rogue One, which was itself the fourth prequel to Star Wars: A New Hope. If Andor is a success, I’m sure it will lead to another prequel and then a prequel to that and then a prequel to that and eventually, we’ll have a Star Wars series that takes place right before the Big Bang.
(As you may have guessed from the tone of that last paragraph, I’m a bit skeptical of prequels in general. It’s rare that they’re ever worth the trouble. Better Call Saul is really the only prequel that I can I think of that actually enriches the experience of watching the show from which it was spun off.)
Anyway, Star Wars: Andor will be available to stream on September 21st. Here’s the trailer: