Production company Immersive Everywhere have started the ball rolling.
They've dropped John Barrowman's already recorded scenes from the upcoming Time Fracture event.
As I've said before, this could have a serious knock on effect for the next series of Doctor Who.
The BBC are now under even more pressure to cancel Barrowman. If other companies are doing it, they can't be seen not to follow suit.
I have the feeling that if Barrowman has already filmed his scenes for Series 13, and if they're so integral to the episode they can't be removed without major rewrites and remounts, the BBC will probably take the decision to scrap the episodes completely.
Reshoot all his scenes with Tig Notaro. Or whoever her UK equivalent would be.