According to a UPI report:
A number of U.S. and British agencies have been asked to meet with Chinese officials to talk about the job, including public relations strategies to be used before the games, media background and market analysis on how China is perceived in the West, the report said. China has yet to announce its agency choice.
We can only imagine the competing agencies will be kept under extremely tight wraps. PRNewser will be watching closely for further announcements.