Roberto Alagna will jump — no, not into the swimming pool, but rather into the first two performances (September 25 and 29) of the Met’s fall revival of Roméo et Juliette, replacing Rolando Villazón who has withdrawn due to illness. The Met’s press office officially announced Villazón’s cancellation today, though regular parterre.com readers knew all about it last week. The role of Roméo remains TBA for the performances on October 3, 6 and 11; Villazón remains on the roster for the winter stint of performances including the HD simulcast.