I play Tropico 6 now for some time and i still love it. But some things i miss and i think it would be nice, if they could include them.

New buildings
The last time we get 2 new buidlings but i think there still miss some other.
Like:
Old peoples home
A alternative for the police station. like a "Police Office". The Police station is very big. a smaler alternative would be nice. That bring security whitout affect freedom
a Kindergarden
Trains and train stations would be awsome.
A museum that you can build befor modern times. Maybe in the World War time.
A tram station.

New Features:
You can rise up the teachter in the Highschool, but not the places for the students. sometimes i must build 5 or more Highschools because they are all full. Would be nice to get a fature that you can make more places for Students.

In a older Tropico game, El Presidente always drives. Here he/she still walks. If i want Presidente to go to a special buidling, he/she walks to it or first need to go to a garage. I dont want that Presidente teleports, but maybe he/she can tall a car and drive from the place were he/she it, instead of going first to a garage.

Its just for dekoration, but i think it would be nice if you have the flags of the superpower you choose, at the Embassy. There are even two flagpole at the entrace, so why not use? And a other thing, if you choose the European Union in modern times, i think it would be nice if you realy have Euros intead of dollar.

And a other thing, dont know if that is possible. But if El Presidente walks around in the city, why not the leader of the fractions would also walk around the city. Like Malson Belmonte or the Sister. Just a little idea^^.
And you can invite them into the Palace for "buisness" ;-)
or how about the Club El Presidente? Why put some random people in it, instead of the real leader of the fractions? Just as a idea.^^

These are just some ideas i have from the game. :-)