From the announcement:
The Sultanate of Naqala continues to flourish. This time of prosperity has attracted more competitors than grains of sand in the desert, so if you expect to remain on top, you’ll have to learn some new tricks… especially since the Sultan founded 5 new fabulous cities that everyone wants to control. I’ve also heard that the Sultan sometimes holds hearings in those cities, offering huge rewards to those who grant him his whims.
Will you be able to control the fabulous cities and fulfill the Sultan’s capricious wishes?
This set will be available in June for those in Europe and at Gen Con for those of us in the US.