We have a few systems planned, we are actually finding a bit hard to add all the systems we want while keeping the story moving at a good pace, but we will continue to do our best. We don't have a combat system planned, I like to write fight scenes to much, it is something we can consider adding at some point but we have no plans now. What we have planned, but are still figuring out how exactly it will work, is an adventuring system.
We have gone over it in the past and we will go over it more when we have it more figured out, so I'll be brief. Basically the idea is to be able to send small teams to deal with various quests, think games like, No Haven, and Kingmaker. These quests will require skill checks, hence the stats, and could result in the people that are doing them becoming wounded and put out of commission for a long while. As these quests are done, however, they will reward the player with money, resources, and items. That's the basic gist of it, nothing is final yet though, we are still in the planning phases for this system.