The site already has lots of good stuff. You can find some brand new screenshots and concept arts, info on all the leaders (including leader animation and fun fact), and listen to the first podcast from the developers.
In addition, there are two articles titled “All about Genghis Khan” and “All about Cleopatra” which contain the Civilopedia entries and bonueses info for those two leaders and their civilization.
Have fun exploring the site! CivRev is coming to XBOX 360, PS3, Nintendo DS on June 3rd in the US and June 6th internationally.