This is not my opinion I have stated quite clearly the company do not want to clone Orlando, it makes little sense when they have a lot of stuff going on in other territories. I have also hinted repeatedly that Warner may not want this 45mins from the actual studios and an hour away from their sizeable retail locations they will be locked into long leases with extortionate London rental rates.
I think it's worth changing the thinking that Potter will make or break this park, it won't. Or that, because it's a British park it needs very British properties that people will revolt if they don't see Harry. The UK is a cultural waste ground for Theme Parks and whatever they build will get the millions through the door they expect, Universal are very good at what they do and instead of responding like I don't know what I'm talking maybe start wondering what plan they have,because there was a time when USF didn't exist and they knew they had to do something different from what was already in Hollywood. There was also a time when Epic Universe didn't exist, that too was very different from whatever everyone knows for park setups...and even now there is extreme cynicism from the IP choices there. I recommend reading Jay Bangs