As you may know Mojang has just moved into their new office. Jeb has said that has delayed them, but the new update will be released on August 1, 2012. There will be a snapshot the week before though. If you have any questions on the update there will be a link u can click on at the end of the blog. Thank you for reading this and please give me a diamond if you like it.
http://www.minecraftwiki.net/wiki/Upcoming_features