In what will be a highlight of the season, soprano Anna Netrebko sings her first Met Aida, going toe-to-toe with mezzo-soprano Anita Rachvelishvili as Amneris. Tenors Aleksandrs Antonenko and Yonghoon Lee alternate as Radamès, and Nicola Luisotti and Plácido Domingo take the podium for the Met’s monumental production.