Tweet
In what appears to be an advertorial from Direct2Drive at the English IGN the first available DLC for Civilization V has been mentioned! "gamers who pre-order Civilization V through D2D will also receive the first Double Civilization and Scenario Pack downloadable content when it is made available post-release, currently scheduled for late 2010 (a $10 value)." For completeness sake: The Babylonian Civilization with Nebuchadnezzar II as leader will ship with this sale as well!
Source