I have to wonder if we haven't been focusing on the wrong thing. It's pretty obvious that the special is going to reveal some things about the Time War, most of which you can already piece together if you've paid close enough attention. But with that whole event in the past, and the Doctor actively trying to forget it, I think the real question is what does it have to do with the tenth and eleventh Doctors? I'm all for revelations about the war, but something has to be happening in the modern timeline for all this to be relevant, no?