Usually, Mario and his pals, Pokemon, and Legend of Zelda are the only recognizable Ips to be in the park. I could see Mario at Universal Studios Florida, then Zelda at Islands of Adventure and the rest would go into the 3rd theme park. It would create guests the reasons to go to three parks just to experience and guaranteed to make Universal and Nintendo money. The 3rd park I believe would have more Pokemon, maybe a deeper Mario series attraction, and for less iconic Nintendo attractions.