It makes no sense that all Empires would have blasted dead terrain even though some of their faction descriptions clearly contradict this, and it makes no sense that all kingdoms would live in grasslands even when they border the desert or live in the north, having them all use the same homogeneous terrains will make future expansions less interesting, and it makes the factions less interesting and unique. There are already four functioning terrains, many modders have already put Kraxis in the desert and wraiths in the tundra why not do it officially?