CBS says, "I'm With Coco?"
Nikki Finke reports her sources say CBS tried to enlist Conan to host this year's Tony Awards airing on June 13th. Conan had to say no because of the terms of his exit agreement and the limits on his TV appearances prior to September (though apparently he can at least show up on TV to be interviewed starting in May).
I agree with Finke that this was really just CBS chief Les Mooves tweaking NBC chief Jeff Zucker because he could. CBS had to know already the answer would be "no," but no harm in stirring the pot, especially since Conan does have past experience having previously hosted the Emmys.