Lore is the answer

seriously

 I might be a fool. but i'm just a non-native-english-speaker , but i enjoy it. 

 seriously. improve immersion. which is good enough. add some more quests, campaigns  , some stuff that adds up to the lore of the elelmental universe. it just will improve the taste of all of it. maybe from the old ages (hosten-era), or something like post-cataclysm. it will add up with the whole immersion thing. one good thing with elemental: fallen enchantress is that it has the equal attention to the lore (rpg-wise) and world command (strategy-wise). that makes it unique. do it! make it richer