Heraldry Update
Based on requests and ideas from the Discord community, I've added a whole bunch of new heraldic charges to the game. (Heraldic charges are the images of animals and objects and so on that are found in coats of arms.)
I've also added bonuses to eight of them:

+30% armour blast resistance

No maintenance cost for town upgrades

-75% armour HP, double lift

Spies can pursue intrigues, with an increased success rate

Additional unrest from towns and cities, building cost and maintenance is halved

+50% Spy defense

Double research and reputation from universities

Double reputation from sending delegations
Finally, I also added five new heraldry layouts:





DLC Status:
I've also added bonuses to eight of them:

+30% armour blast resistance

No maintenance cost for town upgrades

-75% armour HP, double lift

Spies can pursue intrigues, with an increased success rate

Additional unrest from towns and cities, building cost and maintenance is halved

+50% Spy defense

Double research and reputation from universities

Double reputation from sending delegations
Finally, I also added five new heraldry layouts:





DLC Status:
- Still not ready to be announced, waiting for key art.
- Still not about naval ships. :D
- Development is going well.