Conan O'Brien's last night as host of 'The Tonight Show with Conan O'Brien' will likely be next Friday, January 22, a source close to O'Brien tells PEOPLE. "Conan does not currently plan on doing any more new shows after next week," says the source. To add to rumbles, NBC released its post-Winter Olympics schedule -- which did not include the 'Tonight Show.' Though his departure is looking increasingly likely, NBC is insisting a departure date is not yet set.

But if Jan. 22 is indeed O'Brien's final broadcast, the show will have ended two weeks before NBC's scheduled preemption for its 2010 Winter Olympics coverage. Meanwhile, TMZ is reporting that Jay Leno has made a new deal with NBC, which gives him 'The Tonight Show' from 11:35 - 12:35.