Well, after going over several things we'd both like to see in miniature, Tobi has suggested (and I agree) that he should do the Garford Armored Truck next. This was a joint American/Russian project initially designed in 1914. Saw service during the First World War, the Russian Civil War, and during the inter war period. Some may have made it to China to find themselves in the arsenals of the warlords, according to a few accounts. A few made their way back to the states, and I daresay it wouldn't be unusual to see them in a hypothetical ACW2 scenario.
At any rate, very pleased and excited to tell you guys this, first. Still don't have a timetable on it, but when I know more, I will pass it along. I expect it may take a while, being a big beastie.