LittleWings said:
I have no issue with a non-white Master. I do have issue with the Timelords swapping gender thing (If nothing else, it doesn't feel right, and doesn't make sense that after all the regenerations we've seen onscreen there's never been a gender swap incident).
Besides, if people so desperately needed to see a female Master, the Rani does exist (and is going to be played by Siobhan Redmond in BFAs, which I feel is an excellent choice)
We've actually met timelords who've swapped gender. Even recently we had the Corsair who the Doctor has known in both genders. This was canon as early as the fourth Doctor and reconfirmed with Eleven. We've actually had one Timelord who regenerated into a humanoid avian in a radioplay.
And after multiple regenerations we've heard the Doctor say something like 'Oh still a man' which means it's totally possible for him to have swapped gender during regeneration. And in the short The Night of the Doctor which was a prequel to The Day of the Doctor, the eighth Doctor was given the opportunity to control his next regeneration and the possibilities are 'young or old' 'man or women'
https://www.youtube.com/watch?v=-U3jrS-uhuo
It's definitely canon that he can change gender