Wild Rose Entertainment LLC operates two small casinos in Iowa and last year became the Kansas City suburb’s preferred developer for a gambling complex on nearly 300 city-owned acres next to La Benite Park. After signing a development agreement with the city, Wild Rose last fall submitted a formal request for a license to the Missouri Gaming Commission, which voted 5-0 last month to seek other interested applicants for the area a few miles east of Harrah’s and Ameristar.