I think in the future there will be self driving cars and clean energy. Everything will look different from how we see it today.
For Communication there will be some kind of glasses they could put on and see a image of who they are talking to.
There will be still buses but self drove and cars.
There will never be world peace though as long as humans still have a since of Humanity in them.
In the future we will no longer have delivery trucks to pollute the environment we will use drones to delver. Also we will no longer need to pay for large cargo planes and etc causing less pollution.