Thought regarding future of Tomorrowland

I think it’s relatively inevitable that some form of a big e-ticket is going to join Space Mountain and the only real spot is the lagoon. Some of that space has to be used and the subs gotta go. Everyone always talks about “well you can’t get rid of the lagoon because of the way water cycles in the park.” What if we didn’t? What if they built a Tron coaster over the water and Autopia? Could Autopia still be around if they did that or would it ruin the ride in your opinion?