Las Vegas Sands Corp. opened the last piece of the Sands Cotai Central development in Macau on Friday, and the company’s top executive – despite 18 straight months of the market’s declining gaming revenue – said the region has nearly bottomed out. During a celebration surrounding the opening of the $450 million, 400-room St. Regis hotel, Las Vegas Sands Chairman and CEO Sheldon Adelson said the Macau gaming market will turn around in 2016.