I love Tron great visuals,cluttered storyline. With ironman they are getting a universally loved character right now and they also get to test whether or not marvel is strong enough too support its own park
I truly hope not. I am not a Marvel fan (despite enjoying some of the recent films quite a bit) and would feel that
Marvel is a cheap and easy out for a 'theme' for another park. I'm sorta hoping that by the time they get to seriously looking into Bob's minions will be long gone and they can consider other concepts because as DCA proved, once you build a Disney Park, you're stuck with it. And if it takes almost a dozen years and billions to make it resonate with an audience than that's what you have to do.
Marvel may work in small doses (as it does at IOA, for instance), but to me is way too weak and specific to carry a park.