Elemental troops

Strategy in clash of clans has been dominated with attack types like GoWiWi, GoWipe, hogs, etc, making it almost impossible to win in defense. I believe it is time for new troops to be implemented into the game, therefore extending the boundaries of typical attacks. My idea us kinda pokemon themed, with different types of troops. There could be fire troops, water troops, and electric troops. The idea is, every troop is designated for a certain category of defenses, and is weak against others. For example, fire can be strong against electric troops, but weak against water. To balance, defenses will have to be changed too. The laboratory can be like a builders hut, hardwiring each defence to be trained for a certain type of troop. A regular untouched defense won't have any weaknesses, but no strengths too, and a regular troop will work in the same way.