Many news sources are jumping on the fact that at yesterdays television festival, Moffatt referred the second set of episodes shown next year as series 7.
Talking about the the cliffhanger at the end of the first set of episodes to air, Moff said that it would not be resolved until they came back for series 7, putting more fuel to the rumours that the series six hasnt been split in half, but has been halved itself. If this is true, it could mean that from 2012 we could be getting just one series of 6 or 7 episodes.
In other news, Moffat hinted that we wont be seeing the Daleks next year, as has previously been rumoured, saying, "There will be a Dalek story when we've got a good idea for a Dalek story. When that happens, there will be lots of different kinds of Daleks."
It has previously been rumoured that the Daleks will be absent from Series 6 and held back until the 2011 Christmas Special.