>>55484395If the game actually IS based on the redevelopment of Paris as some anons have speculated then there would be room for 'wild areas' on the outside area of the city because the redevelopment of Paris involved massively expanding the size of the city.
Pic related. Blue is Paris before redevelopment, grey is after.
So basically you would have a small, central hub town/city (Lumiose), surrounded by wild lands that you gradually 'develop' over the course of the game's story.