I'm concerned that such great untapped potential as the Emerald Dream is going to be wasted by being turned into a raid. The Emerald Dream poses a great opportunity to create a wild, crazy, and creative world. It would open so many windows and expand on so much lore. There would be so many new models for new, interesting creatures, and so much potential for interesting world events.
But Blizzard doesn't seem to be steering towards the Emerald Dream at all. Many people have been anticipating a new Emerald Dream expansion since Wrath. After they revealed that Mists of Pandaria was going to be the next expansion I lost almost all my hope in an Emerald Dream Expansion.
I would prefer an Emerald Dream raid over nothing, but personally I would really like to see it as an expansion. Anyone else agree?