WildStar‘s next prime raid — The Genetic Archives Prime Level 1 — has been implemented on the PTR. At the moment, the Raid is in early testing and the developers are looking for groups of players to participate in focused testing.
For players who want to help out with the testing, the devs are asking that they reply to this forum thread to schedule guild time. You’ll need 20 people to participate in the dungeon, so keep that in mind. Also, the developers would like to be able to observe your progress in the dungeon, so they’re hoping you’ll be able to schedule time during business hours. They don’t say when those hours start, but do state weekdays before 6pm Pacific are good.