Sounds like a BS for fun. Mind you.. one word - Valyard
I also doubt that they will reveal who the Doctor really is. It makes no sense.
Besides, I already know that his real name is James "Logan" Howlett.
I still want to see Paul McGann return as the Doctor.
I was reading some of the responses there... amazing how so many bad mouth McCoy's Doctor and yet, the whole Dr Who is someone really important to the Time Lords is from the McCoy era.
Plus, there would still be one more Doctor anyway IF this is true. Add to this that it could be explained that he was "charged with more" regenerations by River Song. Or during the Time War by Rasalon.