Fan casting to BEGIN? Dude, it's been going on for freaking YEARS!
Tennant's tenure will forever be seen as premature, but best to go out on top rather than having stayed well after you should have left, for the good of your career AND for the show. I agree that Tennant has arguably been the most memorable Doctor since Tom Baker, but everyone's gotta go and having a new Doctor for a new head writer to play with makes perfect sense. I look forward to both Moffat's writing of a new role as much as I will the new actor's intepretation of it, whoever it turns out to be.
Personally, I won't speculate. Even as a Canadian fan for over twenty five years (and I'm 32!), every time a new Doctor is introduced I've had no idea who it was. Eccleston and Tennat joined that list, so I'm just gonna let it roll on as it has since 2005.
Mark
QTF!
I will miss his version of the Doctor very much. But I would much rather see him go out on top. Tom B. is still my favorite Doctor, but it is a sad statement when I say that when he finally left the role as Doctor I did not miss him. It is much better to be a sweet memory than a sour one. Good luck David T.
Thank you

