UPDATE, April 10, 12:50 p.m. ET: CBS confirmed that Stephen Colbert will take over David Letterman’s slot on the Late Show.
Stephen Colbert Is CBS’ Top Choice to Succeed Letterman, and He’s Into It (Mashable)

UPDATE, April 10, 12:50 p.m. ET: CBS confirmed that Stephen Colbert will take over David Letterman’s slot on the Late Show.