The Civilization 5: Brave New World is bringing a new ideology system to the game, as well as adding some social policies. A new trailer for the expansion goes into a bit more detail on how these will make it easier to become ruler of the known world.
Two new social policy trees have been added: aesthetics, which has a more cultural leaning, and exploration, focusing on discoveries on the high seas. The video also looks at the three ideologies that unlock once you enter the Modern Age.
The expansion will be out for PC on July 9.