Well, in Epic's defense, i can pretty much guarentee you that at least half of the lands (excluding the hub) will be big pullers. SNW has the name recognition and ageless appeal to be an easy sell and by god, if you don't think FB will use the "Wizarding World of Harry Potter" tagline that Universal has been building on for the last ten years to attract guests, your a damn fool!
As for the others, Monsters will most likely play the "fan pleaser" role well How To Train Your Dragon is a bit more of a wildcard. We'll just have to see. All i know for certain is that a new Wizarding World land and the introduction of Nintendo, a franchise that seems to be following in Potter's footsteps, will be the big hooks of this new park when it opens.