Some random thoughts on what will be 100 years from now.
All vehicles will be electric. You will be able to order any body style from a catalogue of every car body shape ever made. Classic cars from the 1930's, '40's, 50's, and '60's will be all the rage. They'll be 3d printed.
Meat will no longer be a socially acceptable food (you barbarian!). You will get processed vegetable matter that tastes and feels identical to any meat.
The biggest threat of AI isn't that it becomes sentient and destroys humankind, the biggest danger will be what humans do with AI.
While we may be mining resources on the moon, it is unlikely we'll have a colony on Mars. Perhaps some humans will have visited it and hopefully made it back.
Still no alien contact.
No life outside of Earth discovered.
While the 20th and 21st century were eras of rural folk moving to urban areas, there will be a trend in the reverse.
We'll know more about the Moon, Mars, and some other planets than we do about the deepest depths of the ocean.
Massive portions of the population will be addicted to immersive VR worlds and will permanently retreat there. Entrepreneurs will exploit this and use them as a labor force.
Original IP will be a thing of the past as remixes of what will be Public Domain properties (like Marvel, Star Wars, TMNT, etc.) will be the norm.