While perhaps unlikely for this game, if more DLC were to be added, what would players like to see? Here are some of my suggestions:-
RIVERS - An interesting addition, these could lead to certain villages and make them into Ports. Roadways would travel over the river via a bridge.
BOATS - Much like the Carts, Boats would ferry gold from one Port to another along the river system.
CYCLOPS - An additional monster, Cyclops are of a similar size to Giants. Rather than pacing around the map, though, they would stay near hills and hurl huge boulders at passers-by (including Dragons!) and deal large amounts of damage per hit.
DRAGONSLAYERS - Professional hunters when it comes to Dragons, these mounted warriors are like the Knights and Archers combined. Armed with bows and lances (for close combat), they relentlessly pursue nearby Dragons until either they, or the Dragon in question, is slain. A dangerous foe!