According to a recent Tweet by Team WildStar, the weekly beta key giveaways are complete for this phase of beta - but that doesn't mean that there aren't plenty of upcoming opportunities to get in and play!
The next weekend beta event will be held starting at 7AM PST on March 7th, 2014 and will run through March 9th at 11:59PM EST.
The beta key giveaway for this event appear to be exclusively distributed by Alienware Arena between March 4th and March 6th. Keys will be available on a first-come first-serve basis.
To prepare, I recommend creating your free Alienware Arena account ahead of time.
Good luck! See you on Nexus!