Well, I really hope so, that future will be filled with some marvelous things. As long we are progressing in some new ways, I mean, we need some breakthrough on the larger scale not just riding the same horse over and over again.
To explain, we did advanced in computer technology, in one big leap, almost unbelievable, and that propelled other branches of science and expanded them. But we are now completely dependent on that technology and our culture have changed with it, I may say, state of our mind is now different. Sometimes, I feel like a hamster (not the guy from this forum :P) that is running in his wheel, which is getting bigger, shiny and is gaining speed with every year, but its still a wheel. If you know what I mean.
There is not much of originality left in our advancement. And I think that is reflecting on our life. Just look at music that is produced these days, over-chewed and over-done, movies: remakes, games: franchise that goes to 2 digit sequels (even indie scene is coping each other), new things are quick thrills, satisfaction with little content, in one word: junk.
We are producing large amounts of junk and little percent of true innovations that can change our life drastically.
So, in 50 years there will be some news stuff, no doubt, but nothing to write home about it.
Who cares that I'll be able to play COD in virtual chamber and actually feel the bulet when it hits me, when the baldness and cancer will still be incurable.
During my childhood I expected that in the 2010-11 flying cars would be zooming around. But, instead I got: failing ASIMO and other 'robots', 3D movies and games that sucks (some little percent is ok I guess -.-), more devastating weapons for more reasonable prices, handheld computers to talk with my friend without actually having to go to another room to talk with him (laziness advanced that's for sure :]), some new ways to cure some disease (but also some new diseases), lots of radiation, more cars on streets (yeah, they better make them fly or I won't be able to walk around them anymore!), some new scientific theories but still just theories, not real answers (I can make few of them too), new candy and junk food (those, I love), more ppl on earth....
All in all, so much content to swallow and so little to remember.