I agree with you, but you have to look at it a different way: nostalgia. Yep, I said it. We got used to receiving a movie / year and now we haven't had anything in 5 damn years. Even if it fails to meet expectations, this will be fully marketed as the return to that world and if WBs smart ad I think they are theyll likely make a connection with Dumbledore. It will be hyped to the stratosphere. I think it will have even weaker legs than Potter, but the OW will be huge. And there's really no other thing to compare it to, becauseno other franchise had the consistency Potter had. And that makes me to believe that the money it made came mainly from fans, not the GA. And when you have a fandom as big and as loyal that they stayed with you for 8 movies, I think they will come back to check this out. It will basically be the first time we have new material from that world since JK finished the last book in 2007/2008.