Originally Posted by cj592:
“Nah, shes the Master. Or now The Mistress!”
I can't believe I'm saying this, but I'm now starting to think this is possible.

But, Moffat did say he thinks the Master's story is done and I don't think he lies as much as some people like to make out so I'm still not totally convinced she's the Master.
We'll see...
Incidently, how do you think a female Master would go down? Would people be angry? Or would they welcome the idea?