When asked on variety program Late Night with Jimmy Fallon when Gears of War 3 would be released, designer Cliff Bleszinski replied, “probably April 8”. Microsoft is giving another date for North America, however.
https://kotaku.com/gears-of-war-designer-talks-to-jimmy-fallon-5515772
According to an official release, Microsoft states that Gears of War 3 will be out on “April 5, 2011 in North America and Asia, April 7 in Japan, and April 8 in Europe and the rest of the world.”
Previously, it was thought that Gears of War 3 would be released in North America on April 8 or April 11 next year.
As with most Xbox 360 titles, Gears of War 3 will get Avatar items that will be available starting April 20, 2010
