Civilisation V's upcoming expansion Brave New World, as well as adding trade routes and new idelogies, will - according to their Facebook photos - feature a few new leaders (along with their respective civilisations): Gajah Mada of Indonesia, and Ahmad al-Mansur of Morocco.

Brave New World is due to hit in July, and hopefully you'll be mass producing people of all castes, from Alphas to Gammas, in your Hatcheries and Conditioning Centres shortly after release.