The release date of Army Wives season 6 is September 8, 2012. As to the cover art, I am quite satisfied with it. See it below.
A 3-disc set will feature all episodes from the 6th season (with a runtime approx. 559 mins.), priced at $39.99.
Although as of the moment you cannot pre-order the complete sixth season, why not get the complete fifth season instead?
You can check other TV series DVD sale HERE.