Great post. I thought of this idea and still thinking about it. My early issues would be having to eliminate vendors in Citywalk for up to a year. I am not saying this cannot happen, but it almost seems like more work than other options available.
Welcome to the forums! I look forward to hearing more from you.
I also feel that we are hearing the "inside" talk of the possible location Universal Creative is considering. We hear Waterworld, Lower Lot and unknown other area. Some talk has the Hogwarts Express, others don't. It sounds to me that nothing has been finalized yet and decisions are still yet to come when the budget for DA is decided upon.