I don’t think that’s terribly likely. The mysterious woman has long been lauded as being the Doctor’s mother (“Who was that woman?” Wilf asked when he last saw the Doctor; the Doctor responded by glancing at Donna’s mum). Even if that is conjecture, the mysterious woman was good and was against the continuation of the Time War and return of Gallifrey. Why she would now want to control the dead – presumably when Gallifrey is locked away somewhere – doesn’t ring true to me, anyway.

Change physically, she could have just aged. But yeah I can’t wait to the finale.

Missy said she had ‘chosen well’, meaning it’s more likely that Clara is actually working for Missy and has been this entire time.

I know it’s Doctor Who and ‘anything can happen’, but that’s stretching it. For one, how does Clara change physically to look like Missy? Unless of course she does some kind of River Song trick that the TARDIS enables her to regenerate. But it seems more like Clara is possessed by Missy at some stage, and becomes a bit sinister. Missy says she ‘chose’ Clara, but hasn’t mentioned why. She also called the Doctor her ‘boyfriend’ and in the same episode, the Doctor told Clara he wasn’t. There is a connection there with them, both having the notion he was in-fact their ‘boyfriend’. It’s a puzzle, isn’t it? Can’t wait for next week though, looks amazing!