Providing we don't nuke ourselves back to the Stone Age, this what I hope the future will look like:
General Technology:
Labor is entirely automated
The use of AIs is widespread
Better means of transportation
Think flying cars, bullet trains, space elevators, and so on..
Energy is produced using only renewable sources
I don't see humanity dismantling Mercury to build a Dyson Swarm, but I could see future humans using more renewable sources of energy, especially if Earth's fossil fuel reserves run dry.
Everything is Recyclable
Paper, plastic, glass, electronics, food waste, etc are all recycled into new products instead of rotting in a landfill
Climate Change is stopped and reversed
This sounds far-fetched, but it is possible to reverse Climate Change.
Better Infrastructure
This could include better roads, electrical grids, telecommunications systems, and so on.
Medicine:
Diseases can be cured using CRISPR-engineered treatments.
Biological 3D Printing allowing doctors to print new organs and even limbs for their patients.
Better Vaccines with higher effectiveness rates.
Higher life expectancy rates for the entire world.
Robotic Surgeons, guided by AI, are the norm globally.
Politics and Economics:
All of Earth may be united under a single, global, government made up of elected representatives from each continent as well as representatives from human colonies on other planets.
War may become a thing of the past, weaponry will be used largely for defensive purposes, and to reign in rebellious colonies.
Unlike today, the economy of the future may revolve around the resource value of the entire solar system, leading to widespread prosperity and wealth, providing capitalism still exists in the future, that is
Using this vast wealth, the government of humanity (or whatever its official title is) may provide each of their citizens with everything they need to survive and thrive.
Because of new technologies, humans won't have to return to Earth to vote in elections, they can do so right from their communication device.