The paper claims that all companions will come together, Donna Noble (Catherine Tate), Martha Jones (Freema Agyeman) along with Rose Tyler, to get set for the ‘biggest finale yet’. The Master is also rumoured for a return.
The source said: “This will be the most exciting episode Doctor Who have ever done. We really wanted to get all the companions back on board as a fitting send-off to David.”
“And of all the enemies for him to face in his final episode it makes sense for The Master to be the main one. Getting Billie to agree is a real coup, but she loved working on the show so much it didn’t take much convincing.”
As always, this is NOT official, it is from a newspaper, which aren’t really reliable.