This is a new take on the traditional Starcraft races. The three races have been replaced by three hybrid races. The Bionics, the Infested and the Void Predators.
Some of you may already have noted that the Void Predator's AI (which is new in V1.2) is economy wise alot stronger than the (older) Bionic and Infested AI. Version V1.3 will feature new improved AI, especially for the Bionics and Infested to improve their economy and expanding abilities.