As good a name as Andor: The Movie Omnibus is, it just occurred to me that with Rogue One, there will be nine films in this series. Why not “The Andor Saga” as kind of a parallel to the Skywalker Saga? One can imagine a universe of nine-film Star Wars sagas focused on different characters.
As for how to deal with Rogue One, I’ve started watching NFBisms rescore project and I almost feel you could just recombine the parts into a single film and call it a day. His project really fits the Andor tone so well. I would be a like worried about moving Andor footage into Rogue One and vice versa, but if someone comes up with a mockup that works really well, I wouldn’t be opposed to it.