Ah, it appears that the Darwinia/Defcon creators at Introversion have set up a brand new blog on their website, and they're talking about their next game.

Chris Delay notes in his first post about it: "Our fourth game is going to be called Subversion. Now I don’t mind admitting that I’m a little apprehensive about this developer diary. Part of me would love to openly discuss our next game with the world, to shout from the rooftops about this grand idea that has been waiting in line since Darwinia took its place in 2003. But another less reckless part of me knows that bad things can happen when developers disappoint gamers, and gamers need few excuses to feel disappointed."

There are screenshots, sure, but they don't really explain what the game is about, just yet. A second post explains what they are: "I worked every hour on Subversion for many months, absolutely convinced this would be Introversion’s big hit second game. By the end of 2002 I had a basic working prototype, screenshots of which can be seen in my previous blog entry." But then Darwinia happened, and only now are they getting back to this game. [Via Gillen.]