In their effort to make a game for the new "instant gratification" crowd, they made Civ 5 into a game so dumbed down it was horrible to play the vanilla version. It was so bad it was almost like playing a game from EA. No seriously. I really really hope they strive for a more advanced and realistic system this time. Civ 6 can be a beautiful and deep experience if they dont go the "lets make a game that anyone can handle!"-route. It took two expansions to get Civ 5 back to basic Civ 4 functionality. Please dont make that mistake again, Firaxis.