The Wormhole wrote:
It'd be one hell of a mindfuck, and with implications that would split fandom to epic degrees.
I could see Moffat doing it for exactly that reason.
He was fourteen when fandom was in turmoil over "The Deadly Assassin" and how Robert Holmes got Gallifreyan society all wrong from what we saw in "The War Games."
hasn't done anything that controversial. The only thing that approached that is, arguably, the half-human revelation of "Enemy Within," but that never stuck.
Adding an extra Doctor and upsetting the fanon theories about the Time War? Yeah, that would be fandom turmoil on the scale of "The Deadly Assassin."
And it would be awesome