It's the the oldest question in the universe which just so happens to be the oldest running gag in TV history, too. Probably. We won't go into the nitty gritty about what will/won't happen if it's ever answered, because your brains are probably still recovering from the undulated mind-f*ck that was The Time of the Doctor. Let's just say that it'd be bad news for everyone and try to get on with our lives, yeah?
Dan Butler is the Doctor Who Editor at WhatCulture.com. When he isn't writing his own articles or editing other people's, he can be found trawling the internet for gifs of Steven Moffat laughing. Contact him via dan.butler@whatculture.co.uk.