Curse of the Wulfen is the next campaign book according to the latest 40k news and rumors. Obviously its centered around Space Wolves, but also has a some Chaos Daemons.
Please remember that at this moment these are rumors. A huge thank you to the source for sending this in.
via Lucky Shot on Faeit 212
Space Wolves campaign book is called "Curse of the Wulfen"
Also includes a decurion for Chaos Daemons
- Lucky Shot