When creating a Kerren campaign, there are three considerations...
1) Strength of the Prime Warden
2) Strength of the Warden
3) Relationship to other Wards
For your campaign, you will need to make a decision for each of these points.
1) Prime Warden
In times of a strong prime warden, wardens tend to toe the line. Things are orderly, static, and very traditional. Trade is controlled by the Prime Ward and may Wards end up doing things or trading things that are not always in their best interst.
In times of a weak prime warden, wardens tend to do what ever they want. While the prime warden and his people help keep things somewhat organized, the Wardens control what trade, manufacturing, and the resources of their Ward. They run things in such a way to benefit their ward, even though that might not be in the best interest of everyone. Times of weak prime wardens tend to be chaotic, ad hoc, and innovative.
There may be something in between, with the Prime Warden being weak in some areas, and strong in others. You will need to set up the relationship between each power block and the Prime Warden. Each Power block controls/ made up of a group of Wards, has a certain ideology (progressive, traditional, independent) and promotes a certain person for the next Prime Warden.
You will also need to determine if the Prime Warden is Young, Middle, or Old. If young, power blocks will be either currying favor or trying to discredit the Warden. (If discredited, the Warden will resign and a new one selected). If old, the jockying for position on who will be his replacement will be the primary topic. If the Prime Warden is middle years, then the various power blocks will try to intrigue against each other, trying to discredit or dishonor key members, to promote their own position in the Prime council.
What will be said for the Warden, will be the same as was said for the Prime Warden, but the scale will be different. The Warden has to deal with each Wing, The Crafters, The Warren folk, HighBloods, and each cluster, in much the same way the Prime Warden has to deal with Each Warden and the Highbloods.
3) Ward relationships.
The history of ward relationships reflects the line of Wardens and the People of each ward. Just like there are rivalries between cities and states, their are rivalries between clusters and wards. These can be based on trade, on tournaments, something else that is prideful (Best Apples?), or some perceived slight (They allegedly did not support the Ward when Zhan came down/ or certain megafauna destroyed a cluster, so bad blood exists).
Note: Warfare is unknown on Kerren. Humans do not kill other humans on a large scale (though duels, near lethal brawls, and murders) do happen.
This is just a quick doodle on the subject, more will be coming.