OK, SO, WOW. After all Matt’s talk about the Eleventh Hour containing a spoiler — and all of us were focusing on Rory’s badge and its antiquated date — wasn’t her line something like “oh, it’s you again?”
Also, for the “River is dead” theorists:
1) So was Rory. Multiple times. Keyword: was.
2) River was not originally supposed to be a recurring character on the show. Her first appearances and her death in Silence in the Library were all Tennant episodes. It was Steven Moffat who decided to bring her back and make her storyline such an integral part of the Doctor’s life. If he can sort out Rory’s death, why not River’s?
3) He certainly sorted out the Doctor’s death after leading us to believe he would bite the bullet for an entire season - especially after all that “fixed point in time” nonsense.