Update:

It's now 100% official, as BBC and BBC America have confirmed that David Tennant, Billie Piper and John Hurt will appear alongside Matt Smith and Jenna-Louise Coleman in the Doctor Who 50th anniversary special. The 50th anniversary will be written by Steven Moffat and directed by Nick Hurran. The press release notes this is "some of the all-star cast" for the special, which certainly implies more announcements are to come...

Original story follows.

David Tennant and Billie Piper are set to reprise their roles as the tenth Doctor and companion Rose Tyler for Doctor Who's 50th anniversary special reports respected Who blog Blogtor Who . The announcement is said to be coming in the next issue of the official Doctor Who Magazine due out next week.Veteran actor John Hurt (Alien, Harry Potter) is also said to be starring in the 50th special which is due to be broadcast in 3D on the show's anniversary on November 23rd. The BBC has yet to officially confirm the involvement of Tennant, Piper, and Hurt, but stay tuned to IGN for more details as they emerge.

Tom is IGN's UK Social Media Editor and resident Whovian. You can stay abreast of his current pet peeves by following him on IGN and Twitter