The Classification Board lists Ubisoft as the publisher on AirMech Arena, and the game is rated PG (Parental Guidance), the rough equivalent of the Entertainment Software Rating Board's E10+ rating. Carbon Games released the original AirMech as a free-to-play title on Windows PC via Steam Early Access, and in the Chrome Store, in late 2012.
A representative for Carbon Games told Polygon they could not comment on AirMech Arena, but said, "In general, AirMech was designed from day 1 to be a portable engine that runs on everything from PC, to mobile phones, to consoles." AirMech is still in beta, and more than 1.2 million players have registered accounts with the game, according to the rep.
"As we near the end of beta, we'll be launching a proper website to introduce the game to new players and switch from being a well kept secret to something pretty huge," the rep added. The Carbon spokesperson also provided Polygon with the piece of concept art above, calling it a "treat."
We've reached out to Ubisoft for comment, and will update this article with any information we receive.
Update: A Ubisoft representative told Polygon, "We have no comment on rumor or speculation."