Beginning next fall, Rustioni will lead at least two operas each season and help provide continuity for the Met as it rebuilds after a wave of retirements.
Wendy White, a veteran mezzo-soprano, was performing when she fell in 2011. Her suit, which claimed negligence, had been one of the company’s longest-running court cases.
Yannick Nézet-Séguin, the company’s music director, will extend his contract and lead Wagner’s four-opera epic, in a production staged by Yuval Sharon.