"Each new version of Civilization presents exciting challenges for our team," said Sid Meier of Sid Meier's Civilization fame. '"Thankfully, ideas on how to bring new and fun experiences to Civ players never seem to stop flowing. From fully animated leaders and realistic landscapes, new combat tactics, expanded diplomacy and shared mods, we're excited for players to see the new vision our team at Firaxis has brought to the series."
And expect to share your vision with others, as 2K notes that Civilization V will feature an "extensive suite" of community, modding and multiplayer components. It just wouldn't be an accurate model of civilization if you couldn't diplomatically destroy your online friends.