How do you like the idea of the map of Dreanor potentially being released bits at a time, and only part of the Dreanor map available at release?
Blizzard have stated that they were thinking of 'saving' some zones for later release in patches.
I'm not saying it's gonna be exactly like in the picture, but it gives you an idea. Exaggeration promotes (mis)understanding.
Personally i think it just adds up to this trend that they are currently running with prolonging content and milking the last bit out of a once great era.