In Season 10, Episode 12, "The Doctor Falls," Potts is tragically converted into a Cyberman. Yet, not all hope is lost as ...

Clara Oswald and Bill Potts were two Doctor Who companions ... When the origins of Doctor Who’s Cybermen were altered yet again in season 2’s “Rise of the Cybermen,” John Lumic was introduced.

"The Robot Revolution" could easily have been a Cybermen adventure ... of other Doctor Who characters who have been merged with Cyber-tech in the past, such as Bill Potts or Danny Pink.