A Christmas special of Doctor Who has been cancelled while the BBC plans the next phase of the sci-fi show.
The corporation announced last year that there would be a festive special in 2026, but confirmed on Wednesday that it will no longer proceed.
Instead, the broadcaster is inviting production companies to put themselves forward to help co-produce the next series.
Showrunner Russell T Davies also confirmed he will leave the long-running programme, writing on Instagram that it is "goodbye from me but hello to a big new future for the show".
Referring to the announcement of the Christmas special, he explained: "We only cooked that up to guarantee a future when no one knew what would happen, but now we do know, there's no need for it.
"You'll have to wait a bit longer for new Doctor Who... but you'll be waiting for more Doctor Who than a one-off. So it's worth it!
"For the record: there was no script, I never wrote it, and no actor was ever approached to play the next Doctor."
In a statement, the corporation said the decision to cancel the Christmas episode was made "after careful consideration" and "had not been taken lightly".
The last series of Doctor Who aired in May 2025 and was the final one to star Ncuti Gatwa, who had announced he was leaving after two series.
The finale saw his Doctor regenerate, and the episode closed with the surprise reintroduction of Billie Piper, who previously played Rose Tyler in the show.
It was not clear whether that meant Piper would become the next Doctor, and the BBC only said at the time that "just how and why she is back remains to be seen".
Since 2023, Doctor Who had been co-produced by Cardiff-based production company Bad Wolf, while the BBC struck a deal with Disney+ to co-produce and distribute the show internationally.
But Disney's involvement came to an end in 2025 after 26 episodes, and it was confirmed the company would no longer be involved with the show.
On Wednesday, the BBC announced both the cancellation of the Christmas special and details of Doctor Who's next era.
The corporation said it had collectively decided, along with Davies and Bad Wolf, not to go ahead with the planned Christmas episode.
"This decision was not taken lightly, and we know it will be disappointing for fans," the corporation said.
"But in order to set the show up for future series, it was decided that, rather than bridge the gap with a one off special, we are choosing to push forward to invest in the long-term future of the show which ensures that when the Tardis lands once more, it does so in all its glory."
The BBC said the plan was "part of securing the next phase of the show for future generations".
A spokesman said the the programme "remains an important part of the BBC" and the decision to put the show out to competitive tender "underpins the BBC's continued commitment to Doctor Who".
The BBC noted that putting the series out to tender was in line with the corporation's Charter and Agreement requirements.
In his Instagram post, Davies said he was "as excited as anyone to see what comes next!"
He added: "Will they keep the theme tune? Will they lose the blue box? Will they bring back the Drahvin?! It's all up for grabs, which is so Doctor Who, exciting and unpredictable and new! Here comes the future."
A previously announced new Doctor Who animation series for CBeebies remains in production.
