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.

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.