According to Doctor Who Magazine, David Tennant will be the only returning Doctor. The new issue (#460) confirms that no other classic Doctors will be back.
The mag states: “Although David Tennant has returned to his role of the Tenth Doctor, the other old Doctors will not be taking part.”
They confirm earlier reports that Christopher Eccleston was initially approached to reprise his role, but was unable to do so.
Citing an earlier quote from Steven Moffat: “It is important you don’t turn it into a fanfest. We can’t make this all about looking backwards. It’s actually got to be the start of a new story.”
They also report that filming on the 50th is near completion, with production on 2013 Christmas Special “and possibly further episodes” starting after Matt Smith works on the film How to Catch a Monster.
please. william hartnell died and still got featured in a special. what's moffat's excuse.