VU Games have announced Caesar IV, this city building sequel is due in 2006.

Developed by Tilted Mill, Caesar IV advances, refines and updates the city-building gameplay pioneered by Caesar III, while remaining true to its predecessor's proud legacy. In Caesar IV, players take on the role of an aspiring provincial governor within Caesar's empire as they build and manage an individual ancient Roman city and its province.

Players lay out each city, road by road and building by building, making sure citizens have all they need to remain healthy, happy and safe from barbarian threats. As the city grows from a simple village to a cosmopolitan metropolis, so too do the challenges it presents. The ultimate goal is to rise among the political ranks of the empire, and become Caesar.

Of course, a bunch of Caesar IV screenshots where also released.