Previously we intended to author the world campaign along with assets, geographics, story, etc..
After a time of analysis and thinking about the world content we made the conclusion that we will go for the procedural content generation (PCG) for our world map.
This will have huge impact on the re-playability. It also allows us to make changes across board faster then with authored content.
We still investigate visual style for the world map (see concept below), but making progress there..
As for the main story and side quests, we'll post more info about these.