Not as big as the interest of the banks and governments around the world so I expect a huge attack to some in the next years as they realize that bitcoin is in fact a threat to the way the world works and that in this new version they are going to be left without a job.
I don't think banks will be "left without a job", but their importance will be declining. In a crypto-ruled world, they would do what they best know: risk assessment. But they would lose their monopoly on many other services.
What I don't think is that they will be able to forbid Bitcoin entirely. There are simply too many countries in the world, and surely one or two will profit from a liberal crypto regulation.
Governments, in my opinion, are not so much affected by cryptocurrencies. Their ability to "print money" is greatly overestimated in this forum
So no, I only expect "attacks" from single states to Bitcoin (Bangladesh ...) or on particular aspects of cryptocurrencies (e.g. unregulated ICOs).
The problem lies in another aspect of Bitcoin:
Simply invest in businesses/stocks/cryptocurrencies with solid fundamentals and you won't have to listen to the noise over a long period of time.
The fundamentals of Bitcoin and every other cryptocurrency out there are not solid enough, in my opinion. They are still volatile as hell and so unusable as "currencies" (above all "units of account") and scalability is also still not solved (we're operating currently near the capacity limit!). So it's
not guaranteed that Bitcoin's price will go up in the future ... $5000 may have been the peak! (I don't believe that, but it is possible ...)
