Share 'All 6's and 7's Features?? Only those with Legit Info Respond'

So I have heard alot of rumors about who is going to be featured on the new album, but does anyone legitimately know who is going to be on the album with Tech?  Also is there a set release date yet? First I hear June 7th (6/7/11) but then I saw Tech wanted to release it in March which would be fucking dope... Anybody with LEGIT info should respond