Maybe give Artaxes the Royal tag? It would be good to have another royal and it fits (to me anyway)

Broot should have the Alien tag.

What about giving Jim and Sasha abilities that work when they are in the same formation? This would give them some fresh replay value and fits a theme. Or, what about a Jim/Emo dynamic in the Grimm's Idle Tales campaign?

Edit: If the Snow Queen became a crusader I would not complain. :D