Oh that's sad news about Sara / Caroline.
Didn't really mean it about Roy and Kaz no but, I do think she's coming to the village for a reason, other than to visit Helen, so, relationship, disaster, unexpected connection. She is sort of an uber-Nic; single mum to many, with added tricky background, isn't she. I don't suppose Roy would want to occupy himself with young children again. He barely seems to see Abbie does he (or Beth)?