Until the official race is released, I'm going to say that it is the Antlanians from Danman's 7DS mod.
YES! In my mod 7 DEADLY SINS, the Vasari were created by the Atlantians as a soldier race. The Vasari turned on their masters as a result of being mind controlled by another race, and turned the Atlantian's weapons against them, and the Atlantians escaped to a far away galaxy, never to be heard from again. Now, a milion years later, the Vasari opened a wormhole with one of their phase experiments that linked directly to the Atlantians and other galaxies. Now that the Atlantians have come through, they are bent on revenge against their creation, and will stop at nothing until every last Vasari is exterminated.....
DANMAN
