Interesting topic.
The level of technilogical advancement we may or may not achieve I think would be based on how accepted certain technologies will be in the future.
Will cloning ever be acceptable?
Will fusion reactors ever be perfected?
Will the backward ass American government ever legalize hemp?

My predictions are effected by these types of variables, but I'll give it a try.

10 to 15 years from now we will be seeing the beginnings of wet-link technology where humans begin to plug themselves into their computers and visa versa in more intimate ways than we currently do. Imagine things like your computer monitor and keyboard interface being replaced with a port that you connect your cerebral cortex directly to your computer processor.

40 to 50 years into the future we could see things like clean and sustainable sources of energy being in abundance rather that just in the experimental stages. Everyday appliances will be powered more and more by fusion technologies or perhaps something even better. Hopefully the burning of fossil fuels will be a laughable thing of the past.

60 to 75+ years in the future and we will be seeing the first off-world human colonies first on the moon then quickly thereafter Mars. Once colonies in remote locations become established the farming of deep space could begin. Mining outposts in kuiper belt, possibly collection of beneficial gasses from the outer layers of Jupiter and Saturn, Mar's moon Phobos would make an excellent interplanetary space port.
The larger projects like mining asteroids and that type of thing wouldnt be for 100+ years I think, but it's possible.

Most important is the wild-card factor of human unity. Without the majority of the planet working as one all, or at least most, of this stuff will reamain the stuff of science fiction. I hope to see a move toward these things in my lifetime. The idea of bio-tech fusion is a little scary, but the rest is almost a necessity for human survival into the distant future.