Originally Posted by
SunspotAnims
I think in this image, Azj-kahet is purple, Hallowfall is blue, Ringing Deeps is both the brown and yellow-green tiles for some reason, and the Isle of Dorn is the big green tile off to the side, while the yellow tube is a sort of "main shaft" connecting them all. Given that this was presented as an early mockup, and how rough it is in general, I don't really know how much it can be trusted as an accurate reference for the zones at all. As far as I know, no official comments were made about the size of the zones but if I had to guess it's probably not as big as the Dragon Isles but their "actual" size probably wouldn't be a good gauge for how big or small they feel anyway due to the unique setting.
As a side note, the main thing I gleam from this map is that Khaz Algar might not be as heavily reliant on the airlock tech as it initially seemed. For sure it'll be necessary to use airlocks to get from the Isle of Dorn to the rest of the zones, but regardless of depth the other zones seem to take up their own section of a sort of pie and don't seem to sit directly on top of each other, meaning it probably won't be strictly necessary to instance them off from each other.