If I'm not mistaken, doesn't Gobbotopia include both Northern and Southern lands?
Azure City is in the South, meanwhile the Hobgoblins lived in an area right by Xykon's backup tower, which insofar as I am aware was in the Northern Lands (possibly in the southern area of them, but that's besides the point). Since Gobbotopia spans what is presumably a relatively narrow but still long stretch of land from formerly Azure City to the mountains, it has both Northern and Southern territories.

This might be completely irrelevant, and The Dark One is the one who would have that as his domain, but it would be a bit funny to have a "Central" pantheon pop up because of that.