While speculation has continued that Activision will be releasing a version of the perenial Guitar Hero centered around Van Halen, the company has offered no official comment. This speculation was further increased over the weekend as a German game ratings board announced specifics for Xbox 360 and Playstation 3 versions of the game. Unterhaltungssoftware Selbstkontrolle (USK) refers to the game as “Guitar Hero Headlining Van Halen”, which would indicate the game may indeed come with an unusual name for the series. In March, Eurogamer magazine mentioned August 9th , 2009 as a potential release date, as reported by the VHND here.
References: kotaku.com, product-reviews.net