Frozen Foxriver is supposed to be a Winter-themed map. Like every other Winter-map, you won't see it until around December, and only up until March or so. You know, to line up with the Winter season?
Also, Frozen Foxriver was beaten to death in about every server possible. It was perfect for spawn-camping due to the large open space yet very crowded together and lined up spawns. Let's not bring that back, please.