Originally Posted by
Thimagryn
The problem with drawing comparisons with Illidan is that he is such a unique character, beyond being the first and most iconic Demon Hunter there is.
He was a Night Elf born with golden eyes, a sign of greatness amongst the Kaldorei. He was an extremely gifted sorcerer, and magic was difficult to use even among the most adept casters. Sargeras himself changed Illidan, blinding his eyes and granting him spectral sight, and burning arcane tattooes onto his body. Illidan gained his warglaives off the doomguard commander, Azzinoth, and over time became adept at using them.
Then there's the post Warcraft 3 Illidan, who transformed himself into a half-demon by consuming the Skull of Gul'dan. He also takes over outland and teaches the Blood Elves how to consume mana from Demons as a source of power.
Then we have the Demon Hunters who represent the many Heroes of Warcraft 3, such as Loramus, Altruis and Telarius. They were the ones either trained by Illidan or followed in his footsteps. Not much is known about these characters, but we know they still exist. What we is that they all have blindfolds, meaning they went through a the Spectral Sight ritual; and all are Warglaive users. We don't know what their backgrounds were, what exactly they went through to become Demon Hunters, and the full extent of their skills or abilities in combat. We also don't know what motivations these characters had to become what they are today.
If we have a Playable Demon Hunter class, it would more likely be based off these Demon Hunters than off Illidan himself. This much should be inferred, since Illidan himself has such a sordid and complicated past. To say that Demon Hunters are all spellcasters because Illidan was a mage is a large assumption, one which could go both ways. We don't know where they get their Warglaives from, since Illidan's blades are of Demonic origin. There's a lot that is still up in the air as far as lore is concerned.
The more I look into the class though, the more I see differences from Warlocks. One thing I'm noticing is that Demon Hunters don't actually have any Shadow based abilities. Immolation is fire, Mana Burn is argubly arcane. Demon Form is the only shadowy thing about them, but that's more fel-based, which is an extension of raw arcane power. Demon Hunters could very well represent a melee class that uses Arcane/Fire spells.