Cubicle 7 has finally given announcement on their official site about Warhammer Fantasy Roleplay Fourth Edition - A Grim World of Perilous Adventure! The release date of WFRP4 will be about mid-2018. So, it will still take some time. But, on the other hand - if it is done well (not rushed job), all the better. Their official news about the coming releases include some really beautiful cover artwork.
See more from the official site: Warhammer Fantasy Roleplay Fourth Edition News