From ghostrecon.net:

Announced by my fellow CM Ubi_Marc, the “June Patch” (although I still prefer to call it ADD ON) will make it’s first appearence at the North Con which is a german LAN tourney sponsored by Ubisoft and taking place from June 16 to June 18! . Ubi is going to exclusively release preview versions of the “Patch” to all the visitors of the North Con before this thing of beauty is going public! Announcement regarding the North Con by Ubi_Marc

A little correction:

The “Patch” won’t be out this friday but friday the 16th of June!
Well I guess that means it won’t take long from then, ’til the Patch is going public! “

It looks like it’ll be sooner than later for the first of the summer add-on patches for GRAW!