I started thinking about this last night.
The episode re-canonized the "Morbius" Doctors. (Personally, I never thought they were decanonized, and that was a hill I was always willing to die on, but, for the vast majority of fans, they weren't canon.) Then I started thinking about Big Finish's Unbound Doctors, and while five of them are clearly not intended to fit into Doctor Who history, there's one that could have fit, there simply wasn't space for him in the history we knew -- the David Collings Doctor from Full Fathom Five. Now, there is a space for him (and his successive regenerations), somewhere in the past that the Doctor is now aware of but doesn't fully remember, so it's possible that Full Fathom Five has been effectively deUnbounded as a consequence of last night.
I've seen suggestions since yesterday that the Shalka Doctor goes back there, one of the Doctor's pre-Christopher Baker incarnations, as well as Nick Briggs' Doctor from the Audio-Visuals.
The episode re-canonized the "Morbius" Doctors. (Personally, I never thought they were decanonized, and that was a hill I was always willing to die on, but, for the vast majority of fans, they weren't canon.) Then I started thinking about Big Finish's Unbound Doctors, and while five of them are clearly not intended to fit into Doctor Who history, there's one that could have fit, there simply wasn't space for him in the history we knew -- the David Collings Doctor from Full Fathom Five. Now, there is a space for him (and his successive regenerations), somewhere in the past that the Doctor is now aware of but doesn't fully remember, so it's possible that Full Fathom Five has been effectively deUnbounded as a consequence of last night.
I've seen suggestions since yesterday that the Shalka Doctor goes back there, one of the Doctor's pre-Christopher Baker incarnations, as well as Nick Briggs' Doctor from the Audio-Visuals.