...Exp...

[Hitshade]

Is the emerald dream definitely an expansion? What if it's a raid instance in the next expansion?

Who knows at this point... personally though, I dont see there being enough content to add for the Emerald dream to give it its own expansion. Sure there is a ton of lore, but what would the emerald dream be? A phased version of Azeroth with a green hue and no citys? rofl.

A major content patch for the Malestrom expansion would be more likely.

At least with the Malestrom we know from the lore that there is a huge landmass that was pulled to the bottom of the ocean, so there would be new areas to explore. The Emerald Dream on the other hand, is just Azeroth as it would have been without any of the intelligent races.