We already know that Alison King, who plays Carla Connor, will be taking a break from the show for creative reasons.
She confirms in an interview with Digital Spy that she's signed up with the show until May 2016.
She said: "I have
just signed till May 2016 - there is a lot to do with Carla yet. I
haven't had a chance to think about beyond that. As for storyline - I am starting to get a sense of what it might involve but I don't know any details."
Alison has already confirmed that she 'definitely wants to come back' to the role as Carla. Read that here.