Quick statement from dev-side:
The Golden Sickle is finished and fully voiced both in English and in German (The English voice over is phenomenal, Dave Fennoy stars as a main character - for those of you who don't know him, he voiced Lee in the Walking Dead) and currently being tested again and again and again, simply because it's very non-linear (5 different endings) and thus very prone to bugs. It has about 5-10 hours of playing time.
The other guilds have not made it into the game, but we're
considering developing a story DLC at the end of this year once the main game is less buggy. The Rhalâta (Cult in the Undercity) was just too cool to throw it away like that.
Cheers,
Nico