https://wccftech.com/civilization-vi-rise-fall-features-trailer/

Civilization VI: Rise and Fall, the strategy game’s first full-expansion, is rapidly approaching. Over the past few weeks we’ve shown you some of the Rise and Fall civs and leaders, but they’re not the only new additions on the way. The expansion will also include a number of tweaks to Civilization VI’s underlying mechanics that should significantly change and improve the game. You can check out a video introduction to the changes, below.