Universal actually owns a lot of old Paramount films, some of which they’ve released on video with the original studio logos intact. Island of Lost Souls springs to mind. The Hitchcock films were mentioned above. Oddly the old VHS of Psycho removed the original Paramount logo and replaced it with a B&W variant of the '70s/'80s Universal logo. Fortunately this has long since been reverted. So there’s certainly ways. However the Fox logos were removed from the digital releases of SW 1-3, 5 and 6 so who knows. I certainly hope they can keep the logo however I will agree if they do they’ll probably wanna do it before the rights are turned over in 2020 but that’s just me.