Since there are talks on the web about more Potter books and movies to be released, I could totally see it happening over here eventually. When I first heard rumors about Potter coming over here four years ago, I did not think that would be possible. Look where we're at now. You never know. While I do think there is a small possibility we could get Diagon, I'm going to share my thoughts more on this below.
I agree with the first statement. WaterWorld is on a friggin' HUGE chunk of land. Until they get the Lower Lot expansion done with or whatever else is next, that should be a prime spot for a big, high capacity E-ticket, or a mini land. Space is premium at USH and they need to use it VERY wisely.
Now back to my thoughts on Diagon. I have not had a chance to see it in person, but from what I've seen on YouTube, it looks amazing. It would be nice to have it, but I would prefer to keep it exclusive to Orlando. Here's why:
1) Gringott's looks cool, but it's VERY screen-heavy. I saw little-to-no physical effects in the video I watched. It's a Transformers on a roller coaster basically. We have enough screen-heavy rides as is.
2) If USH is going to increase its coaster count (And I hope it does), give us LEGIT coasters.
3) I want to have some reason to visit Florida. Haha
4) Aside from those, if it does come, I won't be upset. Although, we could use the space for where ever it may occupy for something unique and completely new.
Yeah, it's staying 'till the end of the decade at least. I see them re-focusing their attention to the lower lot after Potter is done. The upper lot has been through enough construction already.