I'm not sure about the specific future of bitcoin, but IMO a decentralized currency fills some needs, and it is now realizable. For that reason, I think bitcoin, or something like it, is here to stay. Personally, I think a sentiment-based economy is going to replace a labor-based one. There are a couple of good #postwork posts here, and I expect this to become a increasingly common topic of discussion.
What do you mean by sentiment-based economy?
I suggest reading Cory Doctorow's Down and Out in the Magic Kingdom. It's short, and provides a good example. It's also a good futurism read. Basically, as society can more accurately measure sentiment, this begins to replace capital, which is ostensibly a proxy for labor.
Thanks for the suggestion. I'll check it out this week.