Diablo III’s fifth and final class, the Demon Hunter, is the game’s equivalent of a ranged bow class. However, the Demon Hunter is also designed to be more flexible than a simple long-range attacker.
At a Blizzcon panel, the Diablo III design team described the Demon Hunters as a mix of the Amazon and the Assassin classes from Diablo II. While they can equip crossbows (and even dual-wield them), they can also lay traps and lob grenades, bouncing them off walls. Demon Hunters are Diablo III’s “anti-hero” class.
Blizzard also confirmed that the Amazon’s “multi-shot” skill from Diablo II would be making a return in the Demon Hunter’s skill tree.