From Finavia's press release:
Wizz Air has discontinued its flights on the Turku–Riga route, and flights on the Turku–Warsaw route will end on 29 May. However, Wizz Air will open a new route from Tampere to Gdansk, Poland on 13 June.
The flights from Turku to Budapest and Gdansk will continue as usual. A new weekly flight will be added on the Budapest route later in the summer, bringing the number of flights per week to three.
Finavia is negotiating with Wizz Air on new routes.