S2 Games, developers of Heroes of Newerth, last night revealed three new hero concepts to the fans of their Facebook page. It's important to note that the third might not be used, however the first two are definitely planned. The Witch Hunter concept looks pretty slick, in my opinion.
Witch Hunter, a hero port based on the Defense of the Ancients hero Lion.
Concept for a hero port based on the Defense of the Ancients hero Silencer.
Rhino concept; no hero port mentioned yet; may not be used.