Nova Aetas is set in the world of Calradia, but in a later period. The Old Medieval World is vanishing. A new era is coming and you, the player, will experience this. Nova Aetas is Latin for A New Era. The main targets are realism & extended gameplay.
More info:
Forums.taleworlds.com
To download this addon:
Forums.taleworlds.com
It looks bit blurry, but maybe its just the screenshot. Good work!