THIS.
I don't understand why you blind Disney marks can't get through your heads. Indiana Jones. Star Wars. American Idol. Nearly everything in GMR. Twilight Zone. Aerosmith. TMNT, Ace Ventura, Goosebumps back in the day. IT'S NOT DISNEY. They pay $$$ to all the respective studios to use that stuff, and Universal does the same. Just because the studio they're paying for characters is just down I-4 makes no difference.
Disney and Universal... they're MORE than theme parks. From what I see on this board, people think that's all they're about and that there's this giant war between them because of two theme park destinations each down I-4 from each other. WRONG. The parks are a small, small slice of the pie. Disney DID NOT buy Marvel to get back at Universal for Potter, and Universal isn't going to change out Marvel for DC or Action Island or whatever crazy ideas that are floating around.
Those begging for Spidey at DHS or crazy EPCOT pavilion ideas with Marvel characters... get over it. Marvel Super Hero Island isn't going anywhere until UO decides to change it, thanks to that contract. A good amount of UO merchandise features the Marvel characters, and I don't think they'll be letting that slip away anytime soon.