April 2023: Wallis jumps in at Staatstheater Darmstadt in Berg’s Lulu

April 2023: Wiener Symphoniker debut announced for 23/24 season, Beethoven 9

April 2023: Opéra de Lausanne debut announced for 23/24 season, Dorabella in Cosí fan tutte

March 2023: Maison Symphonique debut announced for 23/24 season, Carmen

March 2023: Wallis jumps in at Landestheater Linz as Cherubino

March 2023: Carnegie Hall debut announced for 23/24 season

March 2023: Wallis with the world premiere cast of “Die Letzte Verschwörung” at the Volksoper Wien.

March 2023: Wallis creates roles of Elisabeth Quant & Natalya Ostrova in world premiere of Eggert’s “Die Letzte Verschwörung” at the Volksoper Wien.