Back in the 2006, Blizzard Entertainment acquired Swingin’ Ape Studios, the studio that developed Metal Arms: Glitch in the System in 2003. At that time, Sierra Entertainment owned the IP, but last month, according to the information published in the United States Patent and Trademark Office, Metal Arms trademark would have changed its owner, belonging now to Blizzard Entertainment.
You can check the trademark here:
As we recently told, Blizzard is currently developing some unannounced projects, including the top-secret project to be unveiled sometime in 2014 and the Next-Gen MMO Titan. A new and unannounced Metal Arms title could join them.