I didn't realize this at first but your city always adds 2 food and 1 production to the underlying tile now. The start priorities have shifted dramatically away from hill/ocean/mountain. As in BNW, Forest and Ocean do not matter for city yields.
Example starting yields:
3F 2P 1E - Plains River
4F 1P 1E - Grassland River
3F 2P 0E - Plains
2F 2P 1E - Desert Hill
2F 2P 0E - Grassland Hill
2F 1P 2E - Desert River (floodplains are replaced by city)
Personally, I am prioritizing rivers and plains for city settlement.
Example starting yields:
3F 2P 1E - Plains River
4F 1P 1E - Grassland River
3F 2P 0E - Plains
2F 2P 1E - Desert Hill
2F 2P 0E - Grassland Hill
2F 1P 2E - Desert River (floodplains are replaced by city)
Personally, I am prioritizing rivers and plains for city settlement.