DayZ has a new developer diary available which tells you all sorts of things you might like to know about the standalone version.
One thing of note Dean Hall mentioned, was that the Alpha is still far from being ready as for the time being: "until we cover off on the very basic foundations of it, there’s just nothing there to play, nothing there to really enjoy.”
While that may disappoint you, in the video you can also find out more on the new injury system, and hear developer Ivan Buchta discuss the additions of clinics and police stations to Chernarus.
You can also get a look at a multiplayer test in the video below. Screenshots of it are through the development blog, and below.