I think we will see history repeat itself.
I go back, way before WoW. WC3 is the place to be.
Wrathion told us and showed us what will come.
Warlocks playing a key role.
Horde and Alliance conflict getting real.
I predict when we near the 5.3/5.4 or even the event for the next expac...the Legion will return.
History repeats itself, whenever the alliance vs horde conflict gets serious, the legion comes in strikes when we are potentially the weakest.
Mists of Pandaria is gonna change this. MoP is what the calm before the storm is until all hell is loose.
The Pandaren might be fluffy and cute, but they do make a damn point every fucking time they open their mouths.
OR Wrathion will ruin the fun by preventing it (atleast for a while).