The Name of the Doctor

At long last, the name of the finale has been revealed: The Name of the Doctor. We've also got the episode artwork, but not much else has been revealed. There's a short synopsis from BBC South Africa, but that's about it.

Someone is kidnapping the Doctor’s friends, leading him towards the one place in all of time and space that he should never go.

UPDATE: There is one thing, the poster does confirm that Alex Kingston is back. She was already rumored to appear, but now it's confirmed.

UPDATE 2: Doctor Who Magazine has revealed Trenzalore is involved (see second picture)