With Howard Stern mulling his America’s Got Talent Future, fellow AGT judge Sharon Osbourne started speculation about her own future on the show today with a tweet in response to Stern: “My darling @HowardStern, money is not the reason I’m not returning to @nbcagt, it’s because…” While it appears that Osbourne declares she is leaving the NBC reality series, I hear the talk show host has three more years on her contract, and NBC can exercise its option on her. Situation is different with Stern who signed a one-year deal and is now figuring out whether to come back. “We’d be delighted if he’d want to come back,” NBC’s president of alternative programming Paul Telegdy said at TCA today. Later in the day, NBC entertainment chairman Bob Greenblatt briefly addressed the Osbourne’s statement, saying that he had no comment except “I think it’s much ado about nothing.”