Daedalic has confirmed that the second book of Pillars of the Earth called Sowing The Wind will be available from next week. The interactive novel will have a staggered release across platforms with Steam being the first port of call on December 13th. Following that the GOG release will be on at the end of December, while PS4 and Xbox One owners will have to wait until the end of January.
If you already have purchased the first book then you’ll get Sowing The Wind and the third book at no extra cost. Book three is expected to release in May.
Source: Press Release