Last wave was yesterday. only the 10,000 people who signed up on the page (April 2013) along with any past give-aways will get keys I believe.
They're only increasing the player base little by little currently, as seen by the "Over 450 keys" here:
http://forums.veniceunleashed.net/viewt ... =43&t=7279Keep an eye on the announcements section for any new info for the most part and yes, you will probably get an email with your key in.