1.New Hero -
Uther.
2.New Hero -
Arthas Menethil.
3.New Hero -
Gul'dan.
4.
Ner'zhul Rework, model by -Grendel.
5.Horde/Alliance towers on each point reduced from 2 to 1 but made stronger.
6.Added destructible barricades infront towers.
7.Added a third ability type in addition to Physical/Magical ability and that is "Pure Ability". It's a bit stronger version of them, ignoring the corresponding defensive stat of the target.
8.Old God and Burning Legion creeps now have more and new unique abilities.
9.Environment, Terrain, Doodads and other changes. Adding some new screenshots of it to the thread.