All very good suggestions. I'll add a few of my own.
Add Pagan Holy Sites
I would love to see areas such as sacred groves rune stones and stone burial ships added to the Nordic regions. They would serve the same purpose as monasteries but for pagans.
Religion quests
For Christians they could be things like going on a pilgrimage, recovering a sacred relic, escorting a bishop, delivering an important message from Rome or building a shrine in one of your fiefs.
For pagans the quests would be similar but here are a few possible variations. Travel to learn an almost forgotten saga from a dying skald who lives in a remote area. Bring a heard of cattle for sacrifice. Bring prisoners for sacrifice. Destroy a Christian mission. Recover an ancient talisman. Confront a "monster" that is attacking a jarl's mead hall. Bring back a jarl's wayward son who has run off to become a monk.
Religion Rewards
Upon reaching a certain standing among fellow Christians you could receive a number of rewards. First tier would be a discount on learning to read. Second tier discounted medical services at monasteries. Third tier ability to buy books at a discount from monasteries. Fourth tier receive a holy relic that significantly improves the morale of Christians in your party.
Upon reaching a certain standing among fellow pagans you could receive a number of rewards. First tier a talisman that improve morale slightly for pagan troops. Second tier bearskin shirt improves length of berserk mode. Third tier ability to recruit ulfhednar crazed warriors wearing wolf skins that believe themselves to be posed by the spirit of the animal. Fourth tier ability to recruit berserkers warriors who enter a possible drug induced rage before battle. They often fight wearing bear skins or nude.
Add Pagan Holy Sites
I would love to see areas such as sacred groves rune stones and stone burial ships added to the Nordic regions. They would serve the same purpose as monasteries but for pagans.
Religion quests
For Christians they could be things like going on a pilgrimage, recovering a sacred relic, escorting a bishop, delivering an important message from Rome or building a shrine in one of your fiefs.
For pagans the quests would be similar but here are a few possible variations. Travel to learn an almost forgotten saga from a dying skald who lives in a remote area. Bring a heard of cattle for sacrifice. Bring prisoners for sacrifice. Destroy a Christian mission. Recover an ancient talisman. Confront a "monster" that is attacking a jarl's mead hall. Bring back a jarl's wayward son who has run off to become a monk.
Religion Rewards
Upon reaching a certain standing among fellow Christians you could receive a number of rewards. First tier would be a discount on learning to read. Second tier discounted medical services at monasteries. Third tier ability to buy books at a discount from monasteries. Fourth tier receive a holy relic that significantly improves the morale of Christians in your party.
Upon reaching a certain standing among fellow pagans you could receive a number of rewards. First tier a talisman that improve morale slightly for pagan troops. Second tier bearskin shirt improves length of berserk mode. Third tier ability to recruit ulfhednar crazed warriors wearing wolf skins that believe themselves to be posed by the spirit of the animal. Fourth tier ability to recruit berserkers warriors who enter a possible drug induced rage before battle. They often fight wearing bear skins or nude.