The new production directors I do know: Bartlett Sher will be doing Elisir for opening night (I love Elisir d'amore far more than most people but would never think it opening night material, this confuses me), Robert Lepage is doing The Tempest, David Alden Ballo (!), François Girard Parsifal, and David McVicar both Maria Stuarda and Giulio Cesare (the latter is the "Bollywood" Glyndebourne production).
Update: The spy provides the production teams. The Rigoletto director is Michael Mayer, of Broadway's Spring Awakening. Considering the success of the Met's recent Broadway transplants, I groaned a bit at this news.
The official announcement will be on