Closers To Merge European And American Servers On Jan 29
The official announcement includes a lengthy FAQ which contains most of the usual merger related instructions: delete unused characters to ensure character count doesn't exceed max slots (20), name priority, rank and crew carry-over, and so on.
The stated purpose of the merger, "to ensure the best possible player experience and a healthy in-game economy", likely means the game has suffered from a declining playerbase since its release back in November 2017. The post-merger server is likely to be as good a time as any to give the game another shot.
En Masse also publishes a similar title called Kritika Online through both Steam and their own launcher.
Further Reading: Official Announcement