PCGamesN speculates that some tweets are teasing new content for Endess Space 2:

Endless Space 2 teases new content, and it looks like the return of the Vaulters faction

It looks like Endless Space 2 is getting a new content update, and we won’t be waiting very long to see it. The ENFER account on Twitter, which hosted an ARG around the game’s original release, started spinning back up this week. That’s culminated in a brief video announcing the “End of the Voyage” coming January 18.

Thanks Farflame!