The BBC Media Centre have updated their programme information for the week beginning 23 November 2013 and have released the synopsis for "The Day of the Doctor":
The Doctors embark on their greatest adventure in this 50th anniversary special.
In 2013, something terrible is awakening in London’s National Gallery; in 1562, a murderous plot is afoot in Elizabethan England; and somewhere in space an ancient battle reaches its devastating conclusion. All of reality is at stake as the Doctor’s own dangerous past comes back to haunt him.
Written by Steven Moffat
Directed by Nick Hurran
Executive produced by Steven Moffat and Faith Penhale
Produced by Marcus Wilson
Stars: Matt Smith, David Tennant and Jenna Coleman with Billie Piper and John HurtTransmission time has yet to be confirmed.