According to this article on HomeMediaMagazine.com, Shout! Factory is planning to debut the complete season sets of Transformers and G.I. Joe at San Diego ComicCon, running July 23-26, 2009. The sets will then be available for sale online right afterwards, before hitting mass retail.
The article states “Shout! Factory sources indicated the “G.I. Joe” complete-series boxed set will come in a foot-locker package, and will include only the episodes animated by Sunbow Productions (a different studio produced episodes that take place after the animated movie).”
To read the full article, click here.