Doesn’t he look tired?
We’ve had The Master as Prime Minister, but could we have a Prime Minister as The Doctor? Theresa at Number Ten is known to be a fan of the Time Lord and if she suddenly found herself with time on her hands, perhaps she would like a crack at the TARDIS controls? Twelve already seems to be channeling his inner Maybot. and if that doesn’t work out they could get Tracey Ullman on the cheap. She has already added impersonations of Twelve to her repertoire.
If they get that much mooted crossover with Star Trek would The Doctor fall for the Corbynite Maneuver?