Doctor Who is set for regeneration at the end of the year, and showrunner Steven Moffat says Peter Capaldi will leave on a rather surprising note.
It can be sad – and it is – but to actually kill off lovely old Doctor Who is not what you want to see on Christmas Day.
So it will be a tale of redemption, and hope, and deciding to carry on, instead of being a tale of the Doctor falling.”
Certainly Capaldi’s Doctor seems aware that he’s on his way out; he’s suffered a lot already this season and his regeneration shows signs of having already begun.