It's true! Vic Davis says: "I’ve been working on a free mini expansion pack for Solium Infernum. It’s in pretty good shape at this point and I hope to have it available in a beta form by the end of the month for adventurous players who would like to give it a go for a few weeks to find bugs and give me some game play feedback for tweaking the new mechanics." There's a full list of what's included here.
And you want to remember why this game is so great, go here with your reading. Yeah, I went there. (Thanks be to the vigilant few who sent this in.)