A new poster for Doctor Who's upcoming Christmas special has been revealed, teasing the return of River Song. BBC America shared the new promo art in a post on Twitter: SURPRISE. It's the new poster from the upcoming Christmas special- 'The Husbands of River Song'! #DoctorWho pic.twitter.com/gfTl54bmRL — Doctor Who BBCA (@DoctorWho_BBCA) December 1, 2015 Back in September, BBCA announced that River Song actress Alex Kingston would indeed be making a return as the time traveling archaeology professor on the upcoming special, which premieres on Christmas Day. Continue reading…