- An expanded army list for the Ecclesiarchy, including the Frateris Militia (for pre-Decree Passive, and only if we decide to allow non-PA), the Frateris Militia, etc.
- Showcases of some DIY Adepta Sororitas Orders (including background, painting/modeling, armies, etc.)
- A (mini-?)campaign covering a made up war of faith/crusade
- Apocalypse datasheets for the Adepta Sororitas
- Some new special characters for the Ecclesiarchy
- Background information on the Ecclesiarchy and Adepta Sororitas
The Age of Apostasy opens the door for re-imagining the Adepta Sororitas as the Brides of the Emperor (which probably wouldn't be that much of a change, really), and it would also give us the opportunity to feature the Sisters/Brides, but also the Frateris Templars, the Adeptus Custodes, the Adeptus Mechanicus, and four Chapters of the Adeptus Astartes (Imperial Fists, Soul Drinkers, Black Templars, and Fire Hawks).
The Wars of Apostasy/Plague of Unbelief would shift to the Adepta Sororitas and a number of Chapters of the Adeptus Astartes (the Crimson Fists conducted the Crusade of Righteous Liberation, the Space Wolves fought against Cardinal Bucharis, etc.
We could even look at the Ecclesiarchy from all three time periods (Age of Apostasy, Wars of Apostasy/Plague of Unbelief, later) and have a lot of content.