I don't think it's all that strange really. Actually I think it's probably a brillant idea should it all pan out money-wise and timeframe-wise.
They are obviously drawing on Cedar Point and King's Island appeal and hoping to divert guests away from those and/or offer a different experience.
Map wise with driving where it's located at (Sunbury) is almost exactly halfway between Cedar Point and King's Island. Cedar Fair Entertainment Company owns both Cedar Point and King's Island (among other parks).
FWIW concerning weather, attraction type, etc another article I read had this information: "...will offer more than two dozen wide-ranging attractions, including a saltwater lake as big as 20 acres with a sand beach. ...include indoor skydiving, go-kart racing, rock climbing, an indoor water park, skate park, BMX racing, e-sports and other attractions. It also would have a wellness center, hotels, a conference center and at least 70 restaurants, ranging from fast food to fine dining."