NowGamer chat's exclusively with Cataclysm's Lead Systems Designer Greg Street about Blizzard's expansion. - "Well in the case of zones, we just looked at each one and we asked ourselves, “is this zone fun?”, “does it flow well?”, “does it have a good story or is it just a bunch of random kill quests?” In some cases it was the structure, like the physical layout of the zone. A zone like Darkshore is long and thin and there was always a lot of travel back and forth, so that zone never quite worked. Whereas zones like Desolace never had much of a story. There was like the, “go butcher some centaurs” part, and there was some Naga and things like that."