The campaign to get Betty White (now 420,000 fans strong) to host SNL may have been persuasive enough. Michael Ausiello at TV Guide reports that White is on the verge of signing, though she wouldn't be doing the show on her own:
"Rather, I hear SNL is putting together a 'Women of Comedy' episode that would team the former Rose Nylund with several of her younger contemporaries. Ex-SNL MVP Molly Shannon is on board, I hear, and feelers have also been put out to Tina Fey and Amy Poehler. (An NBC spokesperson insists no one has been confirmed at this time.)"