It goes on year after year, but so far there is no continuation, but from time to time there are news about a possible continuation. As for the idea of returning, it's not out of the question since the show had an open-ended finale. (Remember: Scott and company left town to recruit more wolves to join their pack and help fight a war.) As Teen Wolf showrunner Jeff Davis told EW at the time, "We didn’t want a finale that said 'the end.' We wanted it to be an 'and the adventure continues…' I like imagining that they’re going off to continue the fight."
– They still need us.
– They'll always need us.
– And, you know, I... I need you. You know that.
– I need you too.
– I'm gonna miss you.