Which Doctor Is John Hurt Playing? Has His Role Been Revealed?

Right, for those who watched the series finale of "Doctor Who" back a few months ago would've got a OMG surprise at the end of it....................Introducing John Hurt As The Doctor!!! Right, so John Hurt is playing The Doctor, but which one?
A few days ago "Doctor Who" costume designer Howard Burden described Hurt's Doctor as the "dark doctor" and that his Doctor is set between Paul McGann's Doctor (1996) and Christopher Eccleston's Doctor (2005). So this COULD mean that Matt Smith's Doctor is indeed the 12th Doctor and not the 11th one. Or maybe John Hurt's Doctor has just been written out of time and space and he's been deleted from the regenerations so that Matt Smith IS the 11th Doctor, so he's kind of like got a life back for deleting him or something. Whatever because anything we guess will just be flung back into our faces when the show returns for it's "50th Anniversary Special" in November anyway.