This can’t be right. BBC News are reporting on rumours that have sprung up overnight, that Matt Smith has elected to only stay on as the Doctor for a single series, and will be leaving at the end of this year. There’s already heavy speculation, most notably over at Digital Spy, that Paterson Joseph is already signed on to play the Twelfth Doctor, having been secretly cast at the same time as Smith in order to prepare for a surprise regeneration in this year’s Christmas special.

More on this as we get it.