Since Paradox will be distributing it I guess it'll be available on Gamersgate without any involvement from Steam whatsoever.

... and it will be on a theme not yet treated that you shall like :D I'll keep you posted I so do hope you'll be doing the Thirty Years War. If somebody would finally make a great game about that war I'd be delighted. Slightly disappointed about NPC 2 though, but I hope that you'll prove me wrong.