2K Games announces a duo of Sid Meier games

[Cao Cao]

Sid Meier's Railroads! - (Looks to be a true Sid sequel to Railroad Tycoon)
http://www.gamespot.com/news/6146052.html

Sid Meier's Civilization IV: Warlords - (Expansion pack to Civ IV; adds new civs, units, scenarios, etc.)
http://www.gamespot.com/news/6146077.html

Also announced:
CivCity: Rome - (City-building game developed by Firefly Studios with some support from Firaxis, "inspired" by Civilization)
http://www.gamespot.com/news/6146058.html

[Graystone]

Sweet, I love the Railroad tycoon games.

[Cao Cao]

Hm, IGN has some screenshots and concept art up for Warlords.
http://media.pc.ign.com/media/818/818084/imgs_1.html

Four new leaders confirmed by the images:
Winston Churchill
Josef Stalin
Augustus Caesar
An unnamed pharoah