Mysteriously, the first trailer for the Doctor Who 50th anniversary episode, "The Day of the Doctor," appeared on the Facebook page of BBC Latin America. I think it's safe to assume they posted it a little too early because it was pulled down quickly.
The trailer features not one, not two, but three Doctors as well as his native planet, Gallifrey. Even Rose made an appearance with her odd Bad Wolf powers.
Oh yes, and there will be Daleks.