The world in 4017 would be a really hard topic to write about. I have a few ideas of what a peaceful, and better world would be like. Writing this is actually pretty intense, because you really need to think before you start typing. I probably erased a lot of sentences before publishing this post.
2000 years from now, I think scientists would probably have already discovered a way to reduce pollution and global warming without harming anything else. Just like the cartoon show "The Jetsons", there would be buggies to drive around that don't need electricity and don't pollute. And of course, the robots! Robots that do all sorts of chores, from cooking to washing, and talk. If robots could do that, then they would start finding ways for robots to drive the buggies instead of humans doing that. One thing about "The Jetsons" is that they show no trace of savage animals. I'm just guessing, but the animals are probably on the earth, the reason why the buildings are built in the sky.
Animals would have probably evolved to be able to communicate with humans, though I'm not betting on that. You can't always rely on technology. Again, using what is already in "The Jetsons", but the animals in the show probably evolved and maybe took over the world, then humans had to build their homes in the sky, and that way, the animals would have the whole ground to them, except for the poles that support the buildings in the sky. Or the scientists were finding ways to change gravity and we no longer need the poles to hold the houses in the sky anymore.
And, for those that love shopping (like Veronica in "Archie"), the style would have changed. I can give an example. Search up Flintstones and look at their style. It's a nice style, dresses with animal skin designs, and their hair is done more cavemen and cavewomen style, using bones as their accessories. Now if you look at us these days, we have sweaters, t-shirts, skirts, tights, shorts, leggings, jeans, even ties and suits!
This was all imagination, or to rephrase, logical imagination. Who knows what will happen in the future? Maybe the climate will change because of global warming, or we all moved to a new planet and there the planet has only one or two seasons, and styles will change?