Radio Times confirm Icarus for Episode 209, as expected. The cast list on BBC’s official site does not so far, though contains everyone else from Radio Times info. There will be a still featuring Icarus in the batch from Episode 209 released next week, so standing by what we said previously.
The details Radio Times has for Episode 209 differ a bit from those BBC released. Same thing, extra stuff added. Spoiler weary stay away from them. The title could actually be a big spoiler for this one.