Unless Missy regenerates, I doubt it. It'd be neat if she was playing his daughter!
"The Rich are there to take all of the money & pay none of the taxes, the middle class is there to do all the work and pay all the taxes, and the poor are there to scare the crap out of the middle class." -George Carlin
This last episode, first part of a two parter, but also a continuation of the previous episode...
I was genuinely creeped out by the creature following him around the puzzle. I enjoyed it, the Doctor spends some 2 billion years slowly bashing his way through a thick diamond wall one punch at a time.
Of course I am thinking "Why did the diamond wall not get reset each time the puzzle, and he, did?"
So it looks like the Timelords are at it again. This time they trapped him in a puzzle, and now he's free and on Gallifrey. Looking to get some revenge.