"Matt Smith has signed on to appear in a new series of Doctor Who, the BBC has confirmed.

Fourteen new episodes of the sci-fi show, written by executive producer Steven Moffat, have been commissioned.

However it is not yet known when the new episodes will be broadcast."

http://www.bbc.co.uk/news/entertainment-arts-13694871

They also confirmed a Christmas Special for this year, although I daresay everyone else on here already knew that!