Will the struggling upscale retailer survive as it works to transform its business? : Dallas-based luxury department store chain Neiman Marcus opened its newest store on Manhattan’s west side in March and pulled out all the stops. The flagship department store is part of a 1-million-sq.-ft., seven-story, glitzy shopping complex called the Shops and Restaurants at Hudson Yards developed by the Related Cos. and Oxford Properties Group. The store is part of the first phase of the $25 billion mixed-use new neighborhood. Neiman Marcus occupies 188,000 sq.