Honestly, the HP rides are both a whole lot of video screens. Gringotts comes off as similar to Spider-Man, whit a smoother ride (the coaster portions are SO short!). Admittedly FJ tosses you around quite a bit but it's still a lot of screens. Really, most everything new at Universal is a simulator-like ride.
I don't know if rides like this would really fit in at Disney. When the most intense coaster they have is RnR (tame), I don't think the coaster enthusiast crowd is what they're going after. I like coasters myself, but they're not the focus at WDW.
I DO hope the simulator is a significant upgrade from Soarin'. It's a great ride, but it's low key and the build suits it. I want an amazing presentation for this thing.