From Dalton Ross of Entertainment Weekly:
Link: Orphan Black creator promises more flashbacks in final season
I think this season is really about freedom. Itâ€™s the final season and the clone sisters have to be all-in. Cosima is all-in to find a cure, to find her own cure, and the cure for the sisters. Sarahâ€™s all-in, fighting and scrapping for everybodyâ€™s freedom. Helenaâ€™s all-in because sheâ€™s eight and a half months pregnant when we start. So if you take some stakes like that, itâ€™s a very high-stakes season and it revolves around Helenaâ€™s pregnancy. It also revolves around Kira â€”Â weâ€™re really going to get to the bottom of Sarahâ€™s daughter this year. Continue reading.