Not sure if this has any legs or not, but it’d be interesting to see how a woman doctor will be received by the fan base. While it doesn’t bother me at all, I’m sure they’ll be a lot of fans that’ll leave in droves. Thus, each move my Moffatt and company will need to be made carefully to prepare the fan base for any major change such as this. For me, as a writer, I prefer a female heroine over a male anyway. Strong male characters in science fiction are a dime a dozen, while female heroines aren’t. Thus, why all my MC’s are female.

http://metro.co.uk/2013/07/09/olivia-colman-plays-down-doctor-who-rumours-3874711/