I personally reckon a B&M flyer like Flying Dinosaur at USJ would fit well. Or maybe a B&M wing coaster with a similar theme, as that would even be unique to Florida!
I've heard some people say it might be an LSM Launch Coaster from Intamin, but I don't buy it myself, as Dragon Challenge's replacement is rumoured to be an Intamin LSM (albeit a more family oriented one), and they already have Hulk and to an extent Mummy as high thrill launch coaster experiences.
Out of interest, when would this likely open, if it's happening?