If anyone intends to build a new park its to their advantage to be out in an undeveloped area, away from suburbs (which traditionally complain about noise and expansion) where land is cheap and the risk of sprawl creeping in's minimized. Most successful parks are way out of the way like Cedar Point, Magic Mountain, Great Adventure. Some of the older parks like Disneyland and Six Flags Over Texas (and even Astroworld) were originally in the boonies and the city encroached, boxing those properties in. I dont see anyone building along I45N in the Woodlands area and am skeptical about Katy. Further, very few companies are building parks these days. Cedar Fair doesn't build parks. Six Flags doesn't build parks. Paramount and Busch stopped building parks long ago as well. Disney and Universal feel they have North America pretty well covered right now and are more concerned with Asia expansion. I wouldn't count on any of the large amusement park chains to move into Houston if Astroworld's land is sold out from beneath it.