There are things missing from the game that I don't really lament, but find odd. For instance when you build the legendary wonder of the world "The Great Library (of Alexandria)" you get a free Library in the city as one of the benefits, cause that is common sense. So when "The Louvre" one of the largest museums in the world becomes a buildable Wonder of the World later in the game you would think that as part of building it a free Museum would be one of the benefits, that is not the case. On the topic of Museums, there is only one type, it grants a bonus to Culture (a resource used to buy policies in the game like Liberty or Patriarchy), that makes some sense, museums should provide a cultural benefit, but what about Science museums? Why can't there be 2 types of museum, one that gives a big Culture benefit, and another that gives a smaller culture boost, but also gives a small science boost, and maybe a boost to your national happiness (another resource that builds up to a "Golden Age") if you are a country that is really focused on science? Likewise, Libraries don't grant a bonus to culture (which, really the word "culture" is a stand in for philosophy in the early parts of the game, and Media in the late parts).
|The Great Library.|
There are other things that could be added too. Like for instance, there are 4 big buildings that grant happiness, Coliseums, Circuses (if you have horses or elephants), Theaters (which give no bonus to culture), and Stadiums. Where are the amusement parks? I know it is a little thing, but it would be a cool addition when you research railroads you get roller coaster parks that cities can build to increase Happiness. For that matter, why are there no Zoos, Casinos or Breweries? Currently the technology you start off with in the game is Agriculture, it costs nothing and allows you to build farms, but you can't build Granaries until you research Pottery, why not have Granaries come with agriculture and get Breweries when you research Pottery, the Brewery adds to Food production and some Happiness? And Casinos could happen when you Research Electricity in the late game, have them give happiness and money. Zoos would come with Biology, giving more of a happiness bonus. Just make each structure cheaper to maintain, and have a lower overall bonus to happiness so you are not generating too much happiness and in doing so making it a nonfactor in the game play.
I also think that researching Skyscrapers should be a technology that grants access to Apartment Complexes, which should give a bonus to city growth like the Aqueduct or Hospital. Later they could have you research Mass Market, which would grant access to Grocery stores and allow Luxury items like gems and dyes to grant bigger bonuses to happiness (because it is making these items more available to you citizens. They could also use Airports, which would allow you to fly a unit in a city to another city with an airport, and give a bonus to production.
There is also the lack of alternative power, currently you can only get a Solar Power Plant for structures in the desert, and Hydro Electric Dams next to rivers, why not Wind Turbines as an upgrade to Windmills? They could come along with the Solar Plants when researching Ecology in the late game.
|This is the symbol for Ecology, a guy diving. What do you get for researching Ecology? Solar Plants, cause that is what you do to build Solar Plants in the desert, you go diving.|
So I guess there are a few things I would like them to add in the expansion, Amusement Parks, Breweries, Casinos, and different types of Museum. What are some other things? Well, since they are adding Religion as a new resource and mechanic then that means some culture buildings, Temples and Monasteries are going to have to change function. So I guess new culture building will have to exist, maybe add Artist Communes (which existed in numerous ancient cultures) and maybe Academies (like the one Plato started in Greece), both of these could generate culture.