A few years ago, Big Huge Games scored a hit in the RTS genre with Rise of Nations, and they are currently finishing up its successor, Rise of Legends. IGN has an updated trailer that shows off some of the sequel's impressive cinematics and gameplay.
Unlike the first game, Legends abandons planet Earth for an original sci-fi/fantasy setting where magic and technology collide. In addition to three new playable races, look for an improved multiplayer experience. Rise of Legends is due next month, and you can check out the game's official site for more information.