its June 13th hers the article from tvshowsondvd.com:

http://www.tvshowsondvd.com/newsitem.cfm?NewsID=5194

Also if you go to ultimatedisney.com they have a link to a small picture of the cover art(not that big a fan of it), as well as news of bloopers showing never before seen outakes. I would have preferred commentary, but it's better than the extras that's been released on the last two.

Also according to tvshowsondvd.com, Amazon has a release date of June 6th.

Oh god, I don't like it at all, I think it has realy nothing to do with the show except theres a family in it. Probably the worst cover art yet. I'm glad about the bloopers, though, because its better than the clip montage.