As a fan of Element TD, I always got some idea on improving it, but the original map was not released. I was thinking to rewrite the map by myself (for sure, it will take me ages to do that).
Now, Karawasa and his team is no longer working on Element TD for Warcraft 3. He hoped public to continue the map.
Seeing this as a good chance to improve it, I decided to start working on it.
Elements : Normal, Fire
Each elements are weaker against another element and stronger against another element.
Special Abilities : Normal, Fast, Regeneration, Illusion, Undead, Mechanical.
The towers that can be built are based on elements, while creeps spawned may have special abilities. Have fun.
They are way too much for me to post here, so I linked it to the official site of Element TD.