The sign of a truly prosperous Simcity was to have a fleet of arcologies. This was my jam.
Though there is no “true” victory sequence in SimCity 2000, the “exodus” is a close parallel. An “exodus” occurs during the year 2051 or later, when 350 or more Launch Arcologies are constructed; the following January each one “takes off” into space so that their inhabitants can form new civilizations on distant worlds (although the visual representation of the scene consists of the Arcologies exploding in a manner similar to bulldozed buildings, one by one). This reduces the city’s population to those who are not living in the Launch Arcologies, but it also opens wide areas for redevelopment and returns their construction cost to the city treasury. This is related to the event in SimEarth where all cities are moved into rocket-propelled domes that then leave to “found new worlds” (leaving no sapient life behind).