At the start of the screening of the new episode in cinemas, Millie Gibson popped up saying all mysteries will be resolved. That definitely wasn't. I have to assume that she's being set up as a future villain or the Mary Poppins look at the end suggests she's Missy or it was just a throwaway thing from RTD which means nothing.
I was more disappointed that the whole Mrs. Flood thing wasn't resolved. :(
She's about to be the resolved in the Christmas Special.
At the start of the screening of the new episode in cinemas, Millie Gibson popped up saying all mysteries will be resolved. That definitely wasn't. I have to assume that she's being set up as a future villain or the Mary Poppins look at the end suggests she's Missy or it was just a throwaway thing from RTD which means nothing.
Her whole persona really fits Missy/The Master.
No clue what her plan is though.