During a talk show appearance last week, Will Arnett announced an especially humorous pair of Arrested Development Season 4 guest stars: Conan O'Brien and Andy Richter.

He did so while sitting on the former's couch.

Now, the good folks at TeamCoco.com have posted a photo from the show's set in which Jason Bateman (as Michael Bluth, of course) confers with O'Brien and Richter. Are they portraying themselves? What dealings with Michael have with the famous duo on Season 4?

And, seriously, is it the spring of 2013 yet, so this incredible series can make its triumphant return to Netflix?!?

Richter guest starred previously on Arrested Development, playing both himself and the other members the Richter quintuplets. What does the future hold for these siblings?

We invite readers to scroll through our Arrested Development quotes section as they ponder the answer.

Matt Richenthal is the Editor in Chief of TV Fanatic. Follow him on Twitter and on Google+.