In the future, bitcoin may yet have another destiny. If a sovereign state were to issue its own digital currency based on blockchain technology, the situation would be complicated. Matthew Bishop, senior editor of the economist, said: "the biggest risk for digital money is that the government is likely to act to destroy alternative currencies other than fiat currencies." So should we worry about this?
In real life, monetary forms can be changed, but the "rules of the game" are not reversible. In any era, as long as the "rules of the game" are in, even if there is a war, as long as the data is still in, any virtual currency can survive and pass on under this rule.
As a result, many prognosticators say that the current currency will be replaced entirely by digital money in the near future. However, to become an international currency, digital currency needs to meet a necessary condition, which is the stability of monetary value.
From the national level, the digital currency is a long-term process, the user panic, while prove itself in the prototype stage, again shows the importance of relevant laws and regulations and industry since the flooding. Until a key directive is introduced, the digital currency can only be stuck in the 3.0 era.
I don't think there is any chance for bitcoin to be disappear in future . I don't meant to say that due to privacy no one can remove from the online world but in Actual the main reason is many people ( from very poor to big rich ) have invested Thier money in this field and after these things if any government of that country will sudden take action or any authority will take action against this then we can understand that a big amount of Money will become gardbage , so definitely there no change to disappear bitcoin and also the owner of the bitcoin and bitcoin team are rich because of the value of the bitcoin , so there I no chance for bitcoin to be disappear by them , at emergency condition they will save it in a high encrypted place surely .
So don't think about this with limited life , it is a technology and no one can stop it because it is not running from particular place but is supported by multiple places of the world .
Because no one can predict the future. Maybe tomorrow, next year, 10 years later, 100 years after the BTC still exists or may collapse bubble. 
