I wish that by then there would be more nature. That it is forbidden to brick front gardens, that people who have houses and gardens should provide more greenery.
That a forest, a park is within walking or biking distance. That the car is banned more from cities, but can still have a place on the outskirts of the city. That so there are free buses or cheap public transportation that goes to the city.
So that people also seek more connection with nature, go for walks and just have the benefits of nature.