As reported by the Radio Times, Mark Gatiss, whilst on a promotional BBC Worldwide tour of Brazil, recently revealed: "I am writing for Peter Capaldi - two episodes, in fact". The immediate assumption was that both episodes would be for the currently in production Season 8. However, earlier this morning, Mr Gatiss provided some clarification:
So, the probability is one for Season 8 and one for Season 9 - which is pretty cool. Hopefully, we'll get more Ice Warriors - personally I loved both "Cold War" and "The Crimson Horror" - maybe we could see a return to Peladon. You never know.
Of course, one tiny little thing of note. Mr Gatiss mentioned two episodes for Peter Capaldi - does this put paid to the "Capaldi is only doing one season" rumours? Probably not but it's another tick in the optimism column.