I wish by then there would be more nature. That it is forbidden to lay front gardens in stones, that people who have a house and garden should provide more greenery.
That a forest, a park is within walking or cycling distance. That the car is more banded from the cities, but can still get a place on the outskirts of the city. That there are so free buses or cheap public transport that runs to the city.
So that people also seek more connection with nature, go for a walk and only have the benefits of nature.