Thinking about it I would pefer Marvel for a third gate as I feel it is popular enough and has the staying power, and Toy Story Mania and thel ike to come to the studios.... there's really only Armaggeddon and the tram tour that needs work, you could close the tram tour and let people walk around the London sets. And could replace Armaggeddon with..... suggestions..?
Marvel would work as a third gate and get teenagers flocking to the resort
I know this isn't a new idea, but going off Marvel for the studios dont think it will fit with whats already there, or it gonna turn into an Islands of Adventure