Part 2:

Genetic Engineering will become something that happens on 100% of people. Every time a woman becomes pregnant, they will go somewhere to get a treatment. This treatment will guarantee that the baby will never get cancer and most other diseases, they will never have any disability, and they will even alter the gene that makes people 'bad', to the point that crimes will just not happen anymore. People will not feel compelled to kill or steal or anything else, they will be content and motivated to live a good and normal life. Life will become a utopian experience for everyone, wars will no longer happen, and poverty and disease will eventually be eradicated. There are movies that show things similar to this, Demolition Man etc, but in reality it will happen to bigger extent because it's not just social engineering that will improve life, but it will happen on a genetic level too.

Also many of the hardships in life will be taken care of by machines/robots. There was an episode of Star Trek where people from the past (our time) were crygenically unfrozen or something and end up on the starship, and they are freaking out about how to get their money from their bank accounts etc. The Captain has to explain to them that money is no longer needed in the future, and the acquisition of personal wealth is no longer something that happens. People will generally have all that they want and need in life, it will all be readily available. Life will take on a new meaning, the meaning of life will be to experience things, learn and educate yourself, learn hobbies, everyone will be painters and musicians and all kinds of things because jobs will be more relaxed and less dominating and far fewer hours.

People will eventually live forever. Everyone will get treatment that slows your ageing process down to the point that your body will last a few hundred years. If an organ or something malfunctions or you have an accident, entire parts of the body will easily be replaced. New arms and legs will be created out of real flesh and bone that will be compatible with your own body, and will be attached. Internal organs will be removed and replaced with brand new ones and there will be no scars. Eventually after hundreds of years when it becomes too hard to keep your body working in tip top shape, you will be transferred.... Your entire mind, your personality, your feelings and your memories, everything that makes you you, will be transferred to a digital equivalent (like a hard drive). This will be in an extremely advanced robot that works even better than any human body. At this point you start your second phase of life and it will never end unless you wish it to. You will still feel like you and nothing will feel any different, but your body will be robotic. You will be faster than Usain Bolt and able to lift a car etc. You may even still be able to have children using your own DNA.

The Singularity will change all existence and humans will no longer be the dominant species on the planet. But will still all exist happily together in perfect peace.

From wiki:

The technological singularity is a hypothetical event related to the advent of artificial general intelligence (also known as "strong AI"). Such a computer, computer network, or robot would theoretically be capable of recursive self-improvement (redesigning itself), or of designing and building computers or robots better than itself. Repetitions of this cycle would likely result in a runaway effect — an intelligence explosion[1][2] — where smart machines design successive generations of increasingly powerful machines, creating intelligence far exceeding human intellectual capacity and control. Because the capabilities of such a superintelligence may be impossible for a human to comprehend, the technological singularity is an occurrence beyond which events may become unpredictable or even unfathomable.

We will live forever as robotic super humans with no disease and excellent intelligence and life wisdom. But plans for the future and all the complex things that make the world work, will be dealt with by super intelligent computers. They will replace governments and doctors and many things in life, and they will become our caretakers and our gods. They will run the world and eventually the universe, and they will serve us and we will serve them.