The Avengers video game looks to have a title Avengers: Battle for Earth.
On May 3, 2012, a day before the film was released in the United States, the domain name avengersbattleforearth.com (Whois) was registered through the brand protection company MarkMonitor.
The name was registered by Marvel Characters, Inc. and is currently listed on Ubisofts nameservers: nic1.ubisoft.com and nic2.ubisoft.com.
While there has been speculation the game may have been delayed, cancelled, or simply couldnt work, the newest domain registration hints that it may be officially announced soon.