“This series we’re telling the next stage of the adventure. It’s the glory years of Peter Capaldi’s Doctor and Clara. As you saw in
the finale and the Christmas episode he’s kind of answered his question
of ‘Am I a good man?’ and this year he’s having the time of his life,
having dangerous and exciting adventures in time and space. These are
the glory days of the Doctor and Clara. They’re having the biggest, most
dangerous adventures they’ve ever had and they’re having great fun
doing it. The mission statement we had was bigger adventures, and to go further in
space and time. We’ve got a very confident Doctor, we’ve got a very
confident companion and they’re both experts at doing this now so we can
tell slightly bigger stories. We’re doing more two-parters – and not
just conventional two parters. We’re doing linked stories where you
might not be sure how they’re going to be connected until you see them.
We’re pushing the storytelling that way, to give us more scale of
adventure.” – Brian Minchin, SFX #261