Bicker all you guys want about defining lore, but fact of the matter is for a long standing franchise, the entire basis for this expansion was something that was an Easter egg.
Now it is a nice expansion, I'm not going to whine about kingfu panda and children. However, for a long standing franchise it is odd o go off of only the fact that something exists, somewhere. That was 100% of it. Outside of HumansvsOrcs, at least some of the history (happy now? I'll call it history) was present. Character, places, all that good stuff. But we had just 1 for this expansion. Chen Stormstout.
For a series they should have at least had more.