It has been stated that CBS will not make any decision until after they upfront presentation on how will take Craig Ferguson’s place at The Late Late Show when he leaves at the end of the year.
However, Michael Ian Black, Jason Jones, Neil Patrick Harris, Aisha Tyler, John Hodgman, Joel McHale, and Amy Schumer are all in rumored to be in consideration for the job.
Given how quickly they got Colbert to replace Letterman, we’d guess that CBS will have someone chosen by the end of May.