David Letterman has just signed a new two-year contract with CBS, squashing rumors that he’d be stepping down imminently. And even better news is that his contract doesn’t stipulate an end-date, leaving the door open for further contract extensions down the line if Letterman feels like sticking around even longer. Craig Fergeson, who is expected to take over for Dave when he does end up leaving his post, also extended his contract for another two years.