There are a few pages of the new Chaos Dreadfort Hardback book being leaked. Included in the leaks are the rules for the Skull Keep and some artwork of forces fighting around the Dreadfort.
We have this info from earlier this week on the new book.
via anonymous sources on Faeit 212
The Battletome: Chaos Dreadhold - This book is 90 pages and holds the background on the new terrain coming out next week. (Skull Keep, Malefic Gate, Overlord Bastion) As well as stories for background on AoS regarding the encroachment of Chaos. Several pages are dedicated to artwork of the stunning terrain. This book will also include Battalion Warscrolls for use in AoS.
the images are from Overlord Mark on his twitter account, but since most of us can't see that, Kesher over on the Bols Lounge posted up the pics. You can see them at the following link.