there are lots of new features come from <Endless Legend>
I just found these similarities because i recently tried the <endless legend>.
>new 2D map in non self region
>the new building system that allow you to build your pivotal buildings in other grids other than city.
>changeable policies.
(perhaps it will be more)
Such new features are core improvements of the Civilization VI.
This game only gets the improved graphic performance if you neglect these features.
Civilization VI still is a great game.