Although I haven't released In Harm's Way Tactics yet, I have enough material that I've started putting together the first expansion. It will include three new classes: Gordian Brawler, Dahl Elementalist (see pictured), and Human Gunslinger. It will also have two new factions, the Ferans and Cyber Collective, as well as more neutral enemies.
I haven't completely decided when I'm releasing IHWT, but I may wait until the Thanksgiving weekend to give it more exposure. The expansion then would come out during Christmas.