Notch and his crew have gone into recession for quite a while. Their next patch isn't scheduled to be released until 11-11-11 unfortunately, and God knows that Skyrim will push that date back further considering Mojang will be far too busy getting owned by dragons to release any such patch. There have been hints that the upcoming patch will lay down an A.I. revamp for the enemies as well as new creatures that actually build small villages. I was excited for the Wolf release but they turned out to be anything but useless and very dangerous if you play Multiplayer with a group of friends. Here's to praying that this patch won't be such a grand dissapointment.
On a side note, if you've any screenshots of creations that you've created or griefed into oblivion, please share.