ZODIARKrebirth on 17 January 2017
Naturally this didn't say anything about the quality of the game, but it says that this game will be really massive...the official strategy guide of ffxv in comparison had 352 pages. Seems that the world of horizon is really big
https://www.amazon.com/Horizon-Zero-Collectors-Strategy-Guide/dp/3869930829/?tag=nintlife00-20
