It's fitting that Le Bilboquet is named for a traditional French ball-on-string game, because the management is bouncing around a couple of different stories. One well-informed source says that Le Bilboquet has not renewed its lease for February and will be closing for good. Yet a staffer at the restaurant tells Grub Street that the future includes a beautiful makeover, not a bolt-locked door. Either way, the epic Upper East Side institution as we know it will be no longer. À tout à l'heure!