Excellent work. Creative as hell.
In terms of suggestions, my only one is that there could be more going on with doodad work. Feels like a map that should have a mana fountain - not a literal fountain of mana, but a blue... doodad that could be interpreted as a fountain of mana. Somewhere. This is obviously supposed to be a very magical setting, so some wild magic present would spice things up. That Eye of Sargeras, for example, lacks presentation.
Continuing on from the doodad point, I feel that the map might benefit from more obvious subdivison into 'themes.' Perhaps one starting position could have a fire theme, the other, an ice theme, while the center has an 'arcane' theme - representing the three WoW mage specializations. Or perhaps the 'outer ring' should be more obviously crumbling, while the 'inner ring' would be more intact - representing the collapse of the dream?
More so than most, this is a map where the limitations of the world editor become somewhat apparent. This would be amazing if rendered in a more modern technology platform - the basic idea is wonderful.
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Also, really, not even one flying sheep?
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Great work.