In any case, Big Finish have released information about a new four episode box set, which is scheduled for release in 2016, not all that far away in time.
" Doctor Who: The Churchill Years is a box set of four stories starring Ian McNeice as the legendary war-time Prime Minister Winston Churchill. Ian first took on the role in the Eleventh Doctor story Victory of the Daleks, and the new set details his further adventures with the Ninth, Tenth and Eleventh Doctors. Each story is narrated from Churchill's viewpoint and is ably supported by a full guest cast of actors."