With introduction of the Soviet mechanized units it seems possible that we may see many more variants of machines in the future. More Soviet machines, something made by FNIX to counter the soviets and civilian resistance, which is looking to be getting more organized. We may even see NATO machine forces. With the new Soviet machines coming in there are endless possibilities for new enemies. Personally I would like to see a human sized bipedal enemy that can follow the player inside structures and maybe even use a handheld weapon.