Lost, Desperate Housewives, Grey's Anatomie, Alias, etc. As you know, all of these properties belong to ABC/Disney and all are extremely succesful. What if instead of focusing on the family friendly world of pixar or Disney animation, they focus on these properties that are targeted towards adults for their latest thrilling attractions? The middle two probably won't work, but what about the first and last entries? Would a Dharma Intiative attraction work in Tommorrow Land or Hollywood? Or what about an Alias 3d film? Could these mind blowing shows be what DCA needs to re-juvenate itself?
I think yes, especially for Lost, because it's story has now moved from just being a TV show to other mediums that are supporting the story. It wouldn't be hard to fathom an attraction that would support the same story. Imagine the promotion they could do for both the attraction and the show. You could probably place it next to ToT.
And then there's Alias, I think either a 3D film or live action stunt show would be in order for this one.
Or what about the possibilities of a ABC studios sub area of Hollywood Pictures backlot. With props and film clips of various ABC shows that wouldn't ordinarly make good attractions. Heck even bring in old Home Improvement or Boy Meets World (YAY!) sets to bring in nostalgia. I think an idea like this would compiment the area very well.