It looks very bright for bitcoin in the future.
Globalization is coming to an end. Countries will secure their borders more than ever. Nationalism will rise again. They tried to create a world without borders but that's not possible because not everyone in the world have the same education, wealth etc.
In a time like that, there will be some restrictions. Bitcoin can overcome those restrictions.
Imagine there is a huge economic crisis coming in your country (like the one in Greece) you would want to withdraw every penny you got before something bad happens right? Banks are never safe, they can go bankrupt. Gov's can steal your money. You may try to hide them in your house, which can also get stolen.
What about a tiny piece of paper which nobody will give a damn about what it is? (paper wallet) It can get wet and still get stolen, also bitcoin isn't the most stable currency out there but still, better than NOTHING.
I think it would be a difficult situation to avoid though. If your currency is currently in FIAT and your country gets an economic crisis, how much time really would you have to make a transaction and convert all your money to Bitcoins, would you be able to buy Bitcoin that is enough to sustain the money you have? It's better to prepare for such occurences beforehand.