After 3 Decades, Letterman Says He Will Sign Off - NYTimes.com: "Speculation about Mr. Letterman’s successor will now become a popular parlor game for countless television executives, entertainment writers and late-night fans. Two choices mentioned frequently on Thursday by people at CBS and other networks: Stephen Colbert, the host of Comedy Central’s late-night show, “The Colbert Report,” and Neil Patrick Harris, the star of the recently concluded CBS comedy hit “How I Met Your Mother,” who has scored as host of awards shows on CBS.
Craig Ferguson, who hosts the 12:35 a.m. show on CBS, has also been mentioned as a contender. One executive who has been involved in discussions of CBS’s future in late night said the network would like to move relatively quickly to name a successor."
'via Blog this'
What about Conan?