Warning - there will be spoilers for Warlords of Draenor in this post. Specifically for the Shadowmoon Valley zone.
One of the most fascinating things for me about the unfolding lore in this first zone is the new vision of the draenei it provides us. Far from the ragtag band of embittered survivors clinging on to a crashed dimension ship, the draenei of Warlords are a proud society of expatriated beings who are caught between conflicting impulses. Do they fight to hold on to the world they were forced to leave and its ancient ways, or do they adopt new ones to become more fully part of the world they find themselves on? And how many times have they had to make this choice?
As you quest through the zone, you come to discover that Shadowmoon Valley wasn't chosen as a draenei holy spot through random chance - the interaction between the draenei and the orcs in this area presages developments in other parts of the world. Just as the draenei have had to choose how they will adapt to a new world, the orcs of the Shadowmoon Clan were forced to contend with a power they did not understand. Each exists in a kind of opposition to the other, and the choices of one affect how the other develops.