There will be 6 episodes this year, including the Christmas Special, then 8 next year.
Steven "Amy & Rory will leave in a final encounter with the Weeping Angels in ep 5. Not everyone gets out alive and I mean it this time"
The Daleks will return.
"It's not often the Doctor meets someone who can talk even faster than he does, but it's about to happen. Jenna is going to lead him his merriest dance yet. And that's all you're getting for now. Who she's playing, how the Doctor meets her, and even where he finds her, are all part of one of the biggest mysteries the Time Lord ever encounters. Even by the Doctor's standards, this isn't your usual boy meets girl."
Stay tuned for more quotes and no doubt the official press release.