The net seems to be picking up the whole idea of "John Hurt" as the 9th Doctor, that would be a ballsy move indeed if true. The Sun ran a story though I take whatever they print with HUGE grains of sale...
Hell it would explain why he can't remember his own age
I can kind of see them going that way, Hurt being a reviled incarnation which all the subsequent ones are ashamed of and by the end of the episode a result of working together, Tennant and Smith grow to accept him, making Hurt something like the Joran Dax of the Doctor. However, I'm fairly certain that they are going to avoid the whole "real Ninth, everyone else Eccleston onwards move up a number" by saying that he isn't really a Doctor since he went by a different name.