DiabloFans

They never said that mana was exclusively gained from orbs. I'm sure there will be reasonable regeneration rates, there's potions, of course, and there will probably be ways of gaining back mana through attacks and skills, but sure, I wouldn't mind a new and interesting form of energy collection for a ranged class (assuming there is one, though there probably will be). I wouldn't want it to be a copy or even vaguely like the Barbarian's, though, and they just change the skin. If they were going to do that, I'd say just go with mana again.