To the far west the Blue Dragonflight hold an island called Coldarra, under the watchful eyes of both red dragons and the mages of Dalaran and Kirin Tor. North of the Red Dragonflight's base of operations you have another quest hub in the form of a smaller Horde village, itself under attack by a number of restless spirits angry at the passage of a caravan over an ancient burial ground. To the west of them is a ruined temple that overlooks a Murloc encampment, now ruled by a well-meaning druid in a Murloc suit originally there to do some anthropological research. Among the ice floes off the coast near these friendly Murlocs are a number of more hostile ones, not to mention an orca or two out to make your life that little bit more confusing.

Several of the expansion's environments offer subzero temperatures...and new dangers.
Moving across you have a crashed Scourge ziggurat in the far north, spewing out undead to make war on the Mechagnomes and their mechanical defenses who occupy a good chunk of the region's hot springs. The Nerubians, those spiderlike Scourge creatures, hold a good chunk of the springs too, sandwiched between the Mechagnomes, a number of elementals born from the steam itself, the Horde village, and an Alliance airstrip.
On the eastern coast there is a wrecked Tuskarr village,complete with the misty raiders from earlier, as well as, in the far northeast, an ancient temple city that has been overrun by the Scourge.
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Resource: Gamespot