The latest series of Doctor Who has finished with a glimpse of what is on offer for the Christmas episode. There is snow which is kind of mandatory for a Christmas episode nowadays along with what looks like an Alien Xenomorph. Given its designed for family viewing, the monster won't be anything like the creature in the alien films, sorry to disappoint some. Also making his appearence if Father Christmas / Santa Claus. There's also echoes of The Thing. No pictures of Clara and speculating whether she will return since her boyfriend Danny Pink from the current series was killed off. *Edit* In latter adverts for the Christmas episode, Clara does return to help the The Doctor.