New 3D enviroments - YES, it's 3D NOW!
20+ new character specific abilities to keep each ally unique and fun. New balance. Random weapon drops like diablo now. Jumping. Battle drops are different now for every act. New skill and magic animations. New animations for allies both for battlers and walking. Let me know what you think!
Oh, and a Diablo like equipment menu....
NEW BETTER EVERYTHING PATCH
Source: Steam Community (opens in a new tab)