I really don’t think so, for the reasons you mentioned. If anything, there’s an oversaturation of related media now. I mean, to use Marvel as an example, there’s the comics empire, plus separate movies about five (Hulk, Iron Man, Captain America, Thor, Ant Man) main characters, plus Guardians of the Galaxy, plus the teamup movies, plus shows about Daredevil, Jessica Jones, Luke Cage, Iron Fist, AND The Defenders teamup. Plus Agents of S.H.I.E.L.D., plus the new Runaways show. Plus the plans for new movies and shows.

With Star Wars there’s the main line of films and the anthology movies, there are around ten new-EU novels, all those comics series I mentioned, and right now there’s only Battlefront for (real) Star Wars video games, but there are plans for at least two or three more.