Prisoners Of Time is IDW’s 50th anniversary all-Doctors story, written by Scott and David Tipton with art by Nikolai Dante co-creator Simon Fraser. Fairly big preview of issue one in the link.
The introduction of a mysterious SOMEONE trying to work out the Doctor’s weaknesses points to an ongoing story that will feature all the Doctors in turn, one of the ideas appearing in several of the fiftieth anniversary celebratory series.
Which points to another approach to an anniversary game. Play previous incarnations of your Time Lord characters and their now-departed companions? Perhaps dealing with previous and future enemies rather than their own? Of course, this would work most naturally if the characters’ original players return as well.