I'm of the same opinion as others here, that I would much rather Jodie stayed and Chris Chibnell went. It doesn't matter who plays the character, if the scripts are awful, so will the show be.
I've long been an advocate of Chiwetel Ejiofor as The Doctor, but with the recent events with BLM and so on, the accusing cries of SJW and wokism would be overpowering if a black Doctor is cast.