A thought that just occurred to me.
If Wicked doesn't take over Simpsons, and we're wanting to have something Nintendo in each park, obviously Zelda wouldn't fit but Pokemon is going in IoA, so what goes here?
How about a Nintendo franchise that's not only popular and arguably their next biggest franchise after the big 3 (Poke, Mario, Zelda), but would fit in with the more urban/city vibe of USF: