According to a scan posted on Anna Netrebko‘s Instagram, the diva has received a contract from the Bayreuth Festival. Presumably her performances there will be in the summer of 2019 as Elsa in a revival of Yuval Sharon‘s production of Lohengrin conducted by Christian Thielemann. 

The other (slight) possibility is that Netrebko may be cast as Elisabeth in 2019’s new production of Tannhäuser.