To be honest I have no idea what the future will be like. It is impossible to predict the events. We can only think what may happen because the one thing in life which is certain is the death. In other cases everything may happen. But I will try to think about some events which are possible.
I believe that more and more medicaments would be available on the market and more and more diseases would be curable. There would be more inventions in medicine. It would be possible to treat people who would normally die nowadays. However, I fear that new diseases may appear for which there would be no cure.
Traveling would be more popular and also easier. There would be faster and safer cars, buses, trains and airplanes. Maybe people would go to another planet, for example Mars, and colonize it? I think that space travels would be available for normal person. Maybe it would be possible to go on holidays to Earth orbit or even Moon? I think that private space travels would become more numerous.
There are many things which worry me and one of them is pollution. New technologies pollute the atmosphere and the soil of the planet. We cut down forests and pollute the water. We do it event if we cannot live without them. Many countries do not have enough water to drink and people are thirsty and die because of it. If we do not start doing something about it, the future may be tragic. We may fight wars for water of soil. In the end we would have to live in a polluted and dead world.
I am very afraid of nuclear war which may happen in the future. Countries have so many nuclear bombs that they can destroy the whole planet. It is horrible what may happen if a crazy man will become a head of the state which has those bombs.