The cards are stored as base game and expansions: So in the first three compartments there are the three ages for 2, 3 and 4 players. The last (split) compartment contains the five player and Mystics of Midgard expansion. The Gods of Asgaard cards are stored elsewhere, to really make room for the sleeved cards, as I didn't want to squeeze them to fit.
On the picture you can see two options how to store the god cards. I for myself store the cards between the two compartments of the monsters and gods and the bear clan figures like in the bottom, as they are sleeved, I'm not too worried about protecting the cards any more.
Please forgive the ongoing paint job and the missing minis waiting to be primed and painted, maybe I'll update the picture, once I finished the game ;)
The author remixed this model.
With sleeved cards (I used Gamegenic matte yellow) the original cardtray was too tight for my liking, also I would've needed quite some pressure to store all cards.
Therefore I restructured and widened the card holders and removed the space for the tarot-sized god cards. Those fit easily in the box as shown on the picture.