The fact that no one here can definitively say what the "story" was on Dragon Challenge, aside from having something to do with the Tri-Wizard Cup, tells you loads about the quality of the retheme.
But seriously, it's going to be an immersive family coaster. I know something like this is unheard of in Orlando, but I...
... wait...
Big Thunder? What about it? It's an immersive family coaster?
So... this is probably going to be something akin to Big Thunder, only in the woods and likely with animatronics? It my have some actual show scenes too?
But that aside, family coasters aren't thrilling. There's no way...
What? Space Mountain? That's a family coaster? Okay, yeah... I guess that's pretty thrilling. But those are Disney rides. Universal hasn't done a thrilling family ride with practical effects. Men in Black? I guess so. Maybe. Jaws? Jaws doesn't count. Earthquake? Kongfrontation?
None of that matters. An immersive coaster families can ride together, themed to Harry Potter, can never work. I want a 300 foot hyper-coaster.