*sigh* regardless of what you are saying, it is absolutely impossible for Diagon Alley to be on the lower lot, especially in that location. I don't think you have a concept of size.....Diagon Alley is larger than Hogsmeade, and look how much space that took up in the upper lot. It is 1000% impossible to squeeze Diagon Alley in any form in that location, even with the loss of Panda and Universal Experience. It's just...impossible...and they would not just shoehorn in Gringotts or do it differently in Hollywood, that's impossible as well. Sorry...
I mean, honestly. Look at the picture Zero56 made to show you the building size comparison....and yet you're still saying it could fit.
Stage 28 could fit THREE times comfortably inside the Gringotts show building. And that's just the SHOW BUILDING, not counting any facades, and the rest of the massive land...