With the companions, they were human. So you could easily say, “Oh, I had a cousin who died in Canary Wharf.” Amy didn’t even look like herself in all of that makeup. Gwen from Torchwood, they passed it off as her great-great grandmother or some business.
But this is the Doctor. You can’t just pass it off as a family member or something like that. They’re going to have to explain why he was in Pompeii and, while I hope that they do a good job of that, I genuinely don’t believe that Moffat will. I think that, if anything, there will be a cop out answer.
But I seriously don’t doubt that he will be wonderful. I really do like Peter Capaldi.
And I know they did it with the Sixth Doctor, but it still bothers me.