"internal playtest process", meaning it's a long way off yet. The studio isn't providing any release schedule.
They do tease that it will offer fans a "new way to play" the survival game, and a new map. The first DLC, Breakdown, ramped up difficulty and was 'open ended'.
It's unclear how it'll be a new way to run a survival group, unless we're giving more on the management side of things with greater control over day-to-day operations.
"...there is no final release date. We are just now digging into the internal playtest process (which is how our favorite
"All we can tell you is that it will offer you a new way to play your favorite survival game, that we intend to launch on PC and the Xbox 360 at the same time, and that yes, it will broaden your horizons by a few kilometers."
They did confirm "a new map," which means all-new bases to fortify and experiment with.