Image courtesy of Major League Baseball The Kansas City Royals plan to stay in Kansas City, Mo., and  build a $1.8B stadium in the city's Crosstown neighborhood.  Two iconic Kansas City, Mo.-based enterprises, the Kansas City Royals and Hallmark Cards, are teamed on a $3-billion multi-use development that would feature a new $1.8-billion stadium for the Major League Baseball team, a new headquarters for the greeting card, art supply and media company and retail, entertainment and public space. The Royals would build the new stadium on 85 acres in Kansas City’s Crosstown neighborhood, south of the downtown district. The team would leave its current home, Kauffman Stadium, by 2031 when its lease expires.  Populous  is lead architect/designer for the stadium; a contractor has not yet been named. Hallmark has not yet announced an architect or contractor for its new headquarters, which is planned to replace an existing one in Crosstown.…