Elemental bases

I think there should be some kind of thing where you can unlock at certain town hall levels such as elemental bases. Water, fire, earth, and air or electricity bases on each side of the main base we have now. Every time you switch to a different base of course should act like you are logging off of the other ones so flashers have a chance to attack. Troops that go along with the element of course would be great and the last troop in a barracks should be the weakness of that base such as if you are on your fire base there can be a water troop. Every elemental base should obviously have features going along with its element like on a water base; water walls...this is just an idea i came up with that i thought would be great to have...let me know what u guys think and please no rude comments :)