Not sure that would happen at Universal Studio's American locations, although I'm guessing at some point they might have to phase out the Marvel Island at least, although that may end up with a Nintendo one.
Disney World has a smallish anime gallery section in the Japan section of Epcot but it's mainly just Domo/Sanrio/Miku/Miyazaki stuff (with a tiny bit of Gundam). Gift shop has tons of anime stuff though.