The Atlantic Club closed in January, the Showboat is closing next month and Revel might do likewise if a buyer can't be found in bankruptcy court. If Trump Plaza closes, Atlantic City could lose a third of its casinos and a quarter of its casino workforce in less than nine months. Notices warning employees of the expected closing will go out to the casino's 1,000-plus employees Monday. But the company said it expects the casino to close its doors Sept. Trump Entertainment Resorts told The Associated Press that no final decision has been made on the Boardwalk casino. Atlantic City's crumbling casino market disintegrated even further Saturday as the owners of the Trump Plaza casino said they expect to shut down in mid-September.