Originally Posted by Thawn:
“I do not think so as they are two seperate shows and am not sure how they would blend in together as also the Docotr has already met sherlock holmes in print (Virgin Books New Adventures) already am not sure how it will work.
Also no announcement has been made a bout changing the Doctor anyway and Matt Smith is doing well as the Doctor.”
I read comic books. Such concerns of "making sense" are no barriers to a succesfull crossover.
See the conceptual nightmare that is "W.I.L.Dcats/Aliens", which actually turned out to be quite good.
And the less well known "Howard the duck vs. Preacher"