It was Rowlings first public statement it was a trilogy though. Now, at least, it's not conjecture. The main significance is that it should extend the fresh interest into the Potter franchise. There shouldn't be a cooling down for a long time. And that will probably be a comfortable basis for Universal to continue putting lots of new Potter/Beast stuff into the existing parks and/or third gate. That is all good, since Potter makes Universal a ton of money, which in turn, fuels non Potter expansions also. One thing I often read on the Disney boards is their taunting doubt the Potter phenomena will continue strong. My opinion is those people are completely wrong, and three Beast movies strengthens my opinion.