I
hope there is an Arathi kingdom out there somewhere. Imagine meeting humans whose background is familiar up to a certain point, but that aren't so shaped by the four wars, the Lich King, etc.
To make things even more interesting, imagine if there's an entire other side of Azeroth, with several other continents, and if those Arathi splintered off further into different kingdoms over there.
Maybe there's a community of humans living in some sunny island paradise. Perhaps we get to meet the WoW equivalent of Japanese people, or Australians, or Africans.
What if something that took place over on our side affected them in completely different ways, or what if something else happened to them, but not us?
Maybe they're already living under the tyranny of some Old God, or perhaps they've turned into faceless ones. The possibilities are endless and I love it.
Add to that the fact that there are likely some type of green dragon brood over there, and maybe marooned sailors from our side of the world. Heck, there could be ancient Night Elven warriors lost since before the Sundering, unaware of the fate of their civilisation.