The main problem with this kind of expectations is that people always expect the earth-shattering ones to become common, while disregarding how the simple ones change things.
Everyone a spaceship? Don't count on it. A flying car? Not really. More home automation and better contact management? Definitely. Becoming immortally young? No way. Getting older, on average? Yes.
The first main breakthrough of the last century (or even a bit earlier) was replacing muscle power with engine power. The second was replacing mental power with computers. And the most noticeable ones are with communication: cell phones and the internet.
The thing that doesn't change is how people wnat to live their lives. They want to spend time with their family. The small things, like the washing machine, refrigerator, in-house lighting and electricity changed things far more than the big things, like going to the moon. Because that's not what most people do.
In short: regular people will have the comforts of the current wealthy, but unless there is another breakthrough that makes things more convenient and saves them time, not much will change.
For gradual improvements, we only need miniaturization or better power supplies.
The only unknown left seems to be health care and biologics. Can we design organisms that can keep us healthy, or replace factories for cheap? We might very well. That would increase the lifespan of our grandchildren and give them more material wealth than we can imagine. But it will take a long time.
Another interesting prospect is artificial intelligence and direct mind interfaces. But I mostly expect really useful and semi-autonomous robots on that account. Useful in the house and factory, but not much more.
So, the amount of quality time we can spend with our (virtually expanded) friends and family will grow, the amount of simple jobs will drop, and everything will be a bit better, cheaper and faster.