Chibnall said the following changes would be made in an interview: * Address the problems with Moffat’s overarching story of his era and undo The Day of the Doctor’s undoing of the Time War ending. * Undo Missy/give her backstory to show her struggling with her gender identity (whether they get Michelle Gomez to do it or Simm to do it, either is fine), showing that it was not just a change in genitals directly changing the Master’s gender identity, name, and everything. * Make the Doctor think about the fact that he forced the human race to commit genocide of the Silents because they were bothering him, and make him own up to that horrible, horrible crime he committed. * Bring back the entire crew that worked on Midnight (although getting RTD back might be pretty hard), and