Lets try and make interesting and internally consistent Cosmologies for warcraft.

I will write my own as soon as I get time, until then chew on this discussion between me and ARM on the same topic:

http://www.scrollsoflore.com/forums/...=33439&page=15

Looking at your posts, I can't help but be reminded of another interplanetary web/net. In the beginning we had Light and Void which collided and created the universe. A universe engulfed by the Great Dark in which it was created. Now, if the collision between Light and Void is what created your, currently, non-canon web of Light, could it not be that we have already seen this web? Couldn't it be that the web you talk about is in fact the Twisting Nether? If Light and Void gave rise to the universe, would it not make sense that all forms of magic are deviates of the two? If we go that way, could we consider ley lines to be merely parts of this gigantic grid? The pathways with the highest concentration of magical particles. That would explain how Malygos was able to re-route them so easily. Technically, he was only creating bypasses using passageways that were already there. (Max 1000 chars per post... Stingy!)

It has been expanded.

Warlock provides

Well, that was an interesting read.

We know that the Void and the Light are energies that can be harnessed. And we also know that beings can become part of said energies and exist within them, as in the case of Sylvannas's short afterlife experience.

Something I find certainly interesting.

We also know that one of the Six Elements created in the "Big Bang" actually trascended the Great Dark, becoming a new plane. I'm speakin of the Arcane and the Twisting Nether, of course.

We also have the other different planes. The Elemental Planes. The Emerald Dream. Several pocket-dimensions.

I'd be interesting to see a great cosmological map.

The Arcane, I'm starting to believe that it is not really as detached from divine magic as we once thought. I'm starting to think that it is simply a different approach at reaching balance, avoiding the corruption of the void. Continuing whee I left off, this light-web - Twisting Nether, in my mind - would actually be a shadow-web. Areas of high magical density, of either kind, would be like the nucleus of a neuron and the connections between them the synapses. Some of these connections would then be called ley lines, due to the great amount of magical particles in them.

Going back to the Arcane,...

Light and nature magic would be Light.
Arcane and shadow magic would be Shadow, more or less balanced.
Fel and void would be void, with fel being arcane that has foregone balance.

Now, what separates divine and arcane magic? I'd say just the input of emotions.

Now, why would anyone want to turn to the void, if it makes you feel empty? I suppose, many races we now know as demons started like the blood elves. They lived in areas with big magical veins and, for some reason, that source of magic was lost to them. Their bodies, feeling the magic withdrawal, started sucking in ambient magic, but it was never enough. Eventually, many turned into what we now know as demons.

I'm somewhat partial to the idea of the universe being purely materialistic, and the Light not existing until sentience first arose.

Current lore tells us that the universe began when Light and Void crashed against each other in the Great Dark. So Light particles have to predate sapience/sentience.
Unless beings outside the universe could have influenced it, perhaps even kickstarted creation. Given that the only such beings we know of are OGs that is not a meritless line of thinking.

You could also say that, while Light existed before sentience, the Light we know now is not the same as the primordial Light in those days. Hmm, I kinda like this idea. It meshes with my idea that divine magic mostly deviates from arcane magic by being based on emotions.

Oh, my bad. Wasn't aware of that (I'm honestly getting pretty bad at some of the lore details).