The page listing for the downloadable series has a 'Coming Soon' section for the next chapter, showing a picture of a Cyberman.
The name of the image itself is Winter Of Terror, which could be the title and theme for the upcoming episode.
A total of four episodes are planned for release over the summer.
The first episode, City Of The Daleks, can be downloaded for free for UK residents from the BBC website.
> Click here to read our review of the first episode