Ubisoft has revealed that shortly to be released patch 1.5 will feature new game content in addition to ordinary bug fixes and improvements. The additions are:
– 2 new maps (1 skirmish & 1 scenario)
– 5 new neutral creatures (Kappa Shoya, Mermaid, Darkness Elemental, Light Elemental & Shadow Panther)
– 12 new heroes (2 per faction)
More information about the additions can be found in the Ubi.com article.