My developer says they have everything they need from me, for now at least. They're working on a rules re-write based on some changes we discussed, so I look forward to seeing how they turn out.
So now it's time to work on another design in earnest. I have two ideas on opposite ends of the complexity spectrum - a relatively simple card game based on submarine combat in the Cold War, and an idea for interplanetary commodities trading that gets more complex every time I think about it. I'll probably knock out the card game first while I ruminate on the commodities game in the back of my mind.