Yes, I think this is the first flight with a turboprop form Russia to Europe for a long time. After Aerointernational had reported that YQ would get Saab 2000 aircraft, I grabbed a timetable at MUC and it says the route will be operated with S20 from 11th June and frequency will be up to 3x/week from 1x/week.

Amazingly, according to that timetable, it seems the S20 has a flying time only 20 minutes longer than the Yak-42 which is currently used.