Matt Smith's final adventure as the 11th Doctor will take place on December 25th in Doctor Who's Christmas Special, The Time of the Doctor. The BBC has released a few photos from the series as well as a couple of banners
Orbiting a quiet backwater planet, the massed forces of the universe’s deadliest species gather, drawn to a mysterious message that echoes out to the stars - and amongst them, the Doctor.
Rescuing Clara from a family Christmas dinner, the Time Lord and his best friend must learn what this enigmatic signal means for his own fate and that of the universe.
I'm going to miss Smith, as he ended up being one of my favorite Doctors. In case you missed the teaser trailer for it, you can check it out here.