Couchpotato spotted the dev diary #35 for Age of Wonder 4:
More information.Dev Diary #35 - Ways of War: Tomes and Wildlife
Hello again! I am Luis Ferreira, a senior designer at Triumph Studios. This time we are going over the Tomes and Wildlife that will be available to you on the first pack of our second expansion pass, Ways of War.
[...]
Conclusion
And there it is, tomes and the wildlife! I didn’t go over everything that a tome has but I hope this gives you a taste of what you can play with in the future, when Ways of War releases on the 5th of November! Hope to see you there, and join us next week for another Dev Diary!