Shadowhunters is coming to an end.
Freeform has cancelled the series after three seasons. Shadowhunters, which just wrapped Season 3A, will air its final 10 episodes of season 3 in Spring 2019.
The series will conclude with a two-part series finale event.
— Shadowhunters (@ShadowhuntersTV) June 5, 2018
Shadowhunters struggled massively in ratings suffering declines throughout season 3. A big reason for the decline in ratings from the first season to now was that the television show veered far away from the books and alienated the book fans, which make up a huge part of the fans that Freeform was targeting with this show.
Shadowhunters returns Spring 2019 for its final 10 episodes.