Duh, yes, he's a raid boss. I want his loots.
With the expansion coming closer, many players, including the editor, wonder if Arthas will truly be slain for good come Wrath of the Lich King. DarkFact analyzes past and present heroes who've been introduced in WoW, and gives his opinion on whether Arthas should survive the expansion or not.
Before the Burning Crusade, Blizzard started adding their lore heroes into the game, making them be able to be killed. Kel'thuzad was the first in line. Appearing in the final content update before the expansion, Kel'thuzad was only reached by a select few guilds, and killed by even less. The story allowed for him to revive, since turning in his philactery led to the Scarlet Crusade priest's insanity, and upon thanking you he'd mumble off talking about "taking good care of it", hinting he'd use it for ill purposes and revive the Lich once more.
See more of this editorial at the Ten Ton Hammer WoW site.