Then let me ask you this. Would you rather want Mummy to stay but not wanting the Third park to consist of not just the Mummy, but possibly other classic monsters? Or would you want to see the classic monsters better represented while seeing Mummy go for something that makes sense in the area?
I see Ninja Turtles as a great way to give New York in a way, cohesion. And if that risks losing the Mummy at USF; then I'm fine with it.