I'm late to the party, but damn I love this game. I purchased it and played it for the first time when American Wilds was released, but I have to say I very much prefer the base game and the Soviet trucks/maps. It has really opened my eyes for these good old work horses.
Whatever you do for the sequel, do not step away from the Soviet/Russia/Belarus stuff, 'cause I can' t get enough of it! Keep up the good work!
Also, is it true that the original creator is back onboard? If so, that's awesome!