Alex Kingston: I haven’t been told River’s done
Speaking at Mega-con, she said: “All I can say is… spoilers! But what I will say is the sonic screwdriver that I had in Silence in the Library, which had been given to me by the Doctor, is not the sonic screwdriver that has been seen… yet.”
She later added: “I haven’t been told I’m done [on the show].”
On how she thinks River would react to Capaldi’s Doctor: “Well River’s dealt with a lot of Doctor’s faces in the past so I don’t think that it would be a surprise to her.”