According to BBC America, “Waters of Mars” will be on December 19, then on December 26 the first part of “The End of Time”. Then hopefully the link is correct, that the second part of “the End of Time” will be on January 2nd.
http://io9.com/5414796/the-beginning-of-the-year-means-the-end-of-who
It really is bitter sweet to see the end of Tennat as the Doctor, but i’m looking forward to see the new Docotr as well.