In June 2018, Sebastian will perform together with the Malmö Academic Choir and Orchestra on their summer tour, with concerts in Malmö and Svedala in Sweden (6th & 7th of June), and in Lviv, Kiev, Khmelnytskyi, and Chernivtsi in Ukraine (17th - 24th of June) under the baton of MACO's Director Musices, Daniel Hansson.

Sebastian will return to the role as Kråkan (The Crow), in Benjamin Staern's family opera Snödrottningen (the Snow Queen) at Malmö Opera during the winter of 18/19.