Long expected by racing industry observers and feared by horse owners, trainers and fans, Arlington International Racecourse's status as a gem for the sport of kings is about to come to the finish line.Churchill Downs Inc., owner of the storied Arlington Heights track where horses have raced since 1927, announced Tuesday it plans to put the 326 acres near Euclid Avenue and Wilke Road up for sale. Churchill will use Chicago-based real estate firm CBRE to market the "redevelopment opportunity," officials announced in a Tuesday afternoon news release. And after...…   Long expected by racing industry observers and feared by horse owners, trainers and fans, Arlington International Racecourse's status as a gem for the sport of kings is about to come to the finish line.Churchill Downs Inc., owner of the storied Arlington Heights track where horses have raced since 1927, announced Tuesday it plans to put the 326 acres near Euclid Avenue and Wilke Road up for sale. Churchill will use Chicago-based real estate firm CBRE to market the "redevelopment opportunity," officials announced in a Tuesday afternoon news release. And after...WW…