American War of Independence/American Revolution.
More nice Civil War sets.
French and Indian war.
Some decent Plains sets. (The first Strelets set was a very nice start. Just please continue)
Early 18th Century California
All that for a start would be nice.
Oh well, looking down sheepishly, as you asked if that was all, I'd really, really like it, if you were to release Medieval Russian peasants, if you would make a figure of Buslai swinging a long pole, Vasilissa with her sword hunting down the evil organist, Gavrilo Oleksich watching Alexander's back, and Mikula leading the peasants against the Crusaders.