Firaxis has given us today a deeper look onto the last remaining antiquity age civ, Persia, and the suitable leader for it, Xerxes.
Persia is an economic and militaristic civ, with a starting bias for deserts and plains. Their associated wonder, the Gates Of All Nations, gives more gold and support in a war. This ability will go well together with the unique commander, the Hazarapatis, which allows units to move after unpacking, and the unique unit Immortal, which heal after defeating a unit. Ancient Persia will definitely be a warmongering civ in Civ7. For the discussion about Persia, please check this thread.
We also got another insight into the appropriate leader for Persia, Firaxis has picked Xerxes. Xerxes comes with 2 personas, of which one will be available only via DLC. The base game persona will also be economic and militaristic, and will give his units boni if attacking in neutral or enemy territory. The DLC persona will focus more on Persias location on the silk road, and will give increased trade boni. For all the info please check this thread.