By Kate Ward
Updated April 13, 2011 at 02:45 PM EDT

Yes, Ricky Gervais was partly joking when he told birthday boy David Letterman on The Late Show last night that he would like to see The Office stay on air forever (“Financially, I do”), but with the show’s revolving door of recurring and permanent characters, it does seem as though the series is looking forward to a long life well after star Steve Carell leaves at the end of this season. (CBS has yet to post the full interview on the site, but the awesome folks over at Vulture have posted a few choice moments from the interview here.) After all, the show constantly manages to introduce fresh blood into the sitcom to keep it from getting stale — said Gervais to Letterman: “Andy Warhol said everyone in the future will be in The Office for 15 minutes.” And, as long as guest(?) star Will Ferrell doesn’t prove to be the Cousin Oliver of The Office, an Michael Scott-less Dunder Mifflin could revamp the series into truly must-see television. (Remember how willing we were to give up on this insanely enjoyable season of Idol after Simon Cowell left?)

But then again, like Gervais mentions, “I don’t know how long a documentary would hang around an office. It’s been a long time.” But heading into season 8, how many seasons would be too many seasons for The Office? Would you be willing to stick around long enough to watch The Office: The Golden Years? Or long enough to watch Cece take over Dunder Mifflin in 2040 (if paper even exists then. Or maybe it will hover!).

Follow Kate on Twitter @KateWardEW

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