Fallen Earth will have of Alpha County and how different the landscape there really is. A new development blog has just gone live discussing where the Outpost update is in terms of development, including why it's taken so long to get the update pushed to live. In short? Because during internal testing the area was shooting server stability to pieces, and the team had to step back and fix those issues.
While the blog still doesn't offer a definitive date for the update, it does note that the server issues from before have largely been corrected at this point, so players can look forward to testing the content soon. While the team would prefer the update be live already, it won't take long to finish if testing goes well. Read more about the structure of the region itself in the official update.