Here's how they are described in a new press release announcing this (via TrekMovie):
“The Gorn are among the most iconic villains in the Star Trek universe and their role in this game certainly lives up to that persona,” said Brian Miller, Senior Vice President at Paramount Pictures and Lead Game Producer. “Kirk and Spock find themselves in an incredibly challenging amount of mayhem as they confront the Gorn throughout the game.”
More than just lizard-skinned foes, the Gorn are a blood-thirsty race determined to conquer the galaxy. A true military dictatorship, the Gorn are made up of billions of self-sacrificing warriors across thousands of colonies, each focused on the conquest of alien races. By utilizing their chaos-causing infectious venom, the Gorn seed mayhem and destruction as they destroy populations and deplete planets of their resources.
"Great villains give our favorite characters a chance to become heroes in the process of attempting to eliminate a powerful threat, and Star Trek fans have been eagerly anticipating the moment when the antagonists of the game would be revealed," said Carlson Choi, VP of Marketing at NAMCO BANDAI Games America Inc. “This is one of those moments and we couldn’t be more excited to give gamers a glimpse at the challenges that lie ahead for Kirk and Spock.”
The Gorn range in size and abilities, infecting their foes with venom that can poison, cause hallucinations, and even kill. From the smaller infantry Gorn Rushers, to the larger Gorn Warriors and the massive Gorn Brutes, the Gorn provides a serious direct threat, while the wall-climbing Gorn females showcase the cunning for which this race is feared. Technologically capable and possessing the antithesis of Federation ideals, the Gorn pose a devastating threat to Starfleet, the Enterprise, and its crew.
Here are some more new images, screencaps and concept art, revealed on the new site:
Namco Bandai have also confirmed that Chris Pine and Zachary Quinto (Kirk and Spock) will be voicing their characters in the game. Amazon also seem to have amended their listing for the game, suggesting it will be released this December.
If you're interested in the Gorn, you might want to check out the little guide I made to their previous use in tie-in products.