BBC has announced (via SFFGazette.com) that the upcoming special featuring Jodie Whittaker's final appearance as the iconic sci-fi character will be titled Doctor Who: The Power of the Doctor. The Thirteenth Doctor is about to regenerate into Ncutu Gatwa, so this episode may also include his first appearance as the Fourteenth iteration of the time-traveller.
It's been confirmed that Mandip Gill and John Bishop will reprise their respective roles as companions Yasmin Khan and Dan Lewis, while the poster for The Power of the Doctor definitely appears to show regeneration energy emanating from the Doctor.
As for the first look images, they're accompanied by the tease that "Old friends and enemies reunite."
Upon closer inspection, we see Sacha Dhawan's long-awaited return as The Master (who was last seen in the season 12 finale) and an awesome new look for the Cybermen. They're clearly part of the forces that The Master is bringing together to destroy her foe, and the battle to come is shaping up to be epic enough to warrant that inevitable regeneration.
Perhaps most exciting for fans, though, is the fact that the Doctor is also shown alongside two classic companions, Tegan Jovanka (Janet Fielding) and Ace (Sophie Aldred).
We can't wait to find out where this is heading, and how it sets the stage for the returns of David Tennant and Catherine Tate. Whether The Master will have a part to play remains to be seen, though we do know the Doctor's next big bad will be played by Neil Patrick Harris (it's thought he's a new take on classic foe The Toymaker).
Doctor Who: The Power of the Doctor is set to air on the BBC next month, so keep checking SFFGazette.com for updates.