Big Finish has announced a series of Third Doctor Adventures complementing the already published Early Adventures in giving us the only unrepresented incarnation of the Doctor following the retirement of the Companion Chronicles.
Details on the Big Finish website: Doctor Who: The Third Doctor boxed set!
Tim Treloar will narrate and voice the Third Doctor though Big Finish is keen to stress this is not a re-casting more a narrative device. Katy Manning and Richard Franklin will also be present as Jo Grant and Mike Yates in two stories written by Andy Lane and Justin Richards. The set is scheduled for October 2015.