Honestly, both Draenei AND Blood Elves deserve more lore. I understand there are a lot of races to devote time to. But honestly, the original 8 races seem like the "real" Horde/Alliance while the other 4 are considered "canon".
If the plan is "Draenei/Blood Elves got an entire expansion of lore so we can leave them alone now. Now Worgen/Goblins will get an entire expansion of lore and afterwards we'll leave them alone too. All the while we will constantly provide updates on the original 8 races. This is fair," I will not be happy.