Cold War re-enactment will happen. Most countries re-enactors concentrate on civil wars because they can easily portray both sides. This means that the Russians have more up to date re-enactors than the Americans, with the British following well behind on topicality. The requirement for both sides of a conflict to be represented means that colonial wars are the least likely to be re-enacted. In any case you would need a lot of members to form the Rourke's Drift re-enactment society.