Carbine has today released WildStar's C.R.E.D.D. system, an alternate payment model for players.
C.R.E.D.D. is a 30-day game subscription, which can be purchased with real cash and then sold to other players for gold. This allows players a "play to pay" option, where they can subscribe through gold instead of real money, and also allows players with extra cash the opportunity to earn gold.
The entire C.R.E.D.D. system and business model for WildStar is explained here.