Spoilers for the new episode
So there was a prophecy that The Silence believed in enough to try and kill The Doctor:
"On the fields of Trenzalore, at the fall of the eleventh, when no living creature can speak falsely or fail to answer, a Question will be asked, a question that must never, ever be answered.”
The question was apparently Doctor Who? Which thanks to Oswin the Daleks asked that question in Asylum of the Daleks. I reckon this is the lead up to the 50th Anniversary next year. The Daleks said that The Doctor's hate is the only thing keeping him alive but they don't know this any more so I wonder if the Daleks are part of the prophecy.
This is going to bother me. Damn you Moffat.