The BBC have released the first picture from 50th anniversary minisode, The Night of the Doctor, which you can see below:
The BBC also released this teaser:
The Bringer of Darkness, the Oncoming Storm, the Doctor, the Warrior – A Time Lord.
The Night of the Doctor will air on the BBC Red Button from Saturday 16th November, and will also presumably be released online.
[Source: Doctor Who TV]