I think the Wings lose his rights this summer if not signed.
Checked the CBA and it's actually 4 years for players drafted at 18 AND 19 years old, only 2 years for 20+ year olds. I though it was 4 for 18, 3 for 19, 2 for 20 etc... So yes Vähätalo has another year.rights for european draftees are maintained for 4 years. so 2018 for vähätalo.