However, in the meantime, Big Finish have just announced that Chase and Vienna are to have a story line of their own, which I must say, I find incredibly exciting and very good news indeed. Here's the gist of this morning's breaking news...
Vienna makes her first appearance in the upcoming Doctor Who full cast audiobook The Shadow Heart, which stars Sylvester McCoy as the Seventh Doctor.
Titled simply Vienna, the new series launches with a pilot episode in February 2013 called The Memory Box, in which Vienna is on the run from the law, standing accused of murdering a rich industrialist – a crime she may or may not have committed. But is anything quite what it seems?
Chase Masterson says: "The Memory Box is a great romp. As with The Shadow Heart, writer Jonathan Morris takes us on a ride packed with twists and turns and farce - it's big fun.
“And Vienna is one of my favourite characters ever: the endearingly incorrigible killer we loved to hate in The Shadow Heart - completely unapologetic, even charming about her day job as a mercenary assassin. Plus, she usually manages to land on the side of justice. Vienna's quite a turn-on - I think you'll like her as much as I do."