Could be considered extremely mild spoilers
The transition form act 1 to 2 made sense. You started on a small version of the map from the first act, but then you get to act 3 and it is the same map as act 1 with completely different races in the provinces and 2 new continents (1 attached by land). How did the map transition to that? was it supposed to represent an attack on your capital? but if so why did the map races change up so much and where did the land bridge connection to another continent come from?