But Gemma is dead.

I think the car accident left Gemma either braindead or with serious brain damage. She’s not really “severed” like the main characters, or possibly when not she goes back into a coma. But the Gemma who was married to Mark is gone for good. This season will be about finding that out.

Then season 3 (just began filming) will have Ms Casey becoming her own person while Mark and Hella ride off into the sunset.