It's been a long road getting from there to here, but players who have been waiting patiently for the next WildStar patch can stop waiting. Mystery of the Genesis Prime adds two major new pieces of content: the Defile, a new zone extending off of Blighthaven; and Journey to Omnicore-1, a new solo instance that allows players to explore more of the story behind Nexus.
The Defile includes the Black Focus (which we toured), the Siege of the Lightspire, and a variety of solo quest chains. Journey to Omnicore-1 kicks off the game's ongoing story, exploring more of the details behind what took place on Nexus and how the events on the planet could have long-lasting consequences for everyone on the planet and off. The patch also increases loot rewards from enemies fought in groups, adds rental mount vendors for low-level players, and increases money rewards from quests and junk items. You can take the patch for a drive today; it took a while to land, but there's a lot of new stuff therein.
[Source: Carbine Studios press release]
[Update: Carbine has posted a list of known patch issues on the official site; they include currency display issues, non-functioning gardens, and borky public events.]