No sooner has Whitbread Plc decided to spin off Costa Coffee than questions are being asked about the future of its other main business. Setting a course for the Premier Inn budget hotel chain will be the company's main priority after Costa is jettisoned, and there's no shortage of ideas in the market about how that can be achieved. While shareholder Blue Whale Capital LLP says the business should adopt a franchise model similar to InterContinental Hotels Group Plc, Bernstein analysts favor expanding Premier Inn's business in Germany. Others say the division might be bought.