From Bleeding Cool
Doctor Who has never engaged in any such officially sanctioned crossover outside of the Doctor Who universe before. The closest was Dimensions In Time, a much derided charity telethon show which featured characters from the BBC soap opera Eastenders. Star Trek has also seen comic book crossovers with X-Men and the Legion Of Superheroes. But this is the first time that two major competing sci-fi franchises have been allowed to merge in any way before.
Of course this kind of meeting has been the subject of fan fiction thousands of times. But there’s a very special something when it becomes official.
IDW is attending the Gallifrey One convention in a week’s time. I’d expect this to be announced there.