I personally like the game much and await what will further come from it.
I have following suggestions after playing the game:
- Add a legacy system for multiple games in the same world, each game would be an 'Age'
- A mechanic or two for minor factions to make them more interesting
- Natural Catastrophes: volcanoes that erupt, hurricanes that destroy entire cities, etc
- Tech Levels, improving and declining in tech could add texture to the different regions if combined with the legacy system, for example in the previous age an industrial empire ruled large parts of the land, but now more primitive feudal lords or tribals inhabit their former domain