The fellows over at By Fire and Sword recently held their Historical Skirmish Force competition. Well, the votes have been cast and counted and the winners have been found. Juha Heinänen and Samu Somppi are them, with their Swedish and Muscovite forces.
The forces represent those that fought in the Russo-Swedish War of 1656-1658 (fought in Finland, because it just sort of got in the way). The Swedish forces will be getting units of dvorians and streltsy. The Muscovite forces will get themselves cossack boatmen.
You can download a pdf of the new forces over on the company's website.