2K Games and Firaxis are releasing months-long DLC plan for Civilization VI. The New Frontier Pass, launching on May 21st, will kick off a content schedule that extends to March of next year. It starts with the addition of the Maya and Gran Colombia civs in the first drop and continues until owners of the pass get eight total new civs, six new game modes, and a host of new buildings, map resources, and other goodies. There are even free updates that will benefit non-owners as well.
There are no plans to make the individual content updates available separately. Check out Tom’s review of Civilization VI here.