It'll get the Broken Isles treatment, i.e. Kul Tiras is going to become a new continent/chain of islands. Also, the same treatment will, at some point in time, be given to Zandalar, Kezan, and Tel Abim (50/50 on Tel Abim). Also, since it'll be instanced, they can shift this map in any direction (or scale), so I don't see why you're using it as a reference.
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Anyways, at this point, we should focus on content speculation. Yeehaw!