I do not think like this. Bitcoin will still be a digital currency in the future but it will have many legal rules to control and now bitcoin has got many big communities behind it. It's not easy to be dead.
That's right, In my opinion a bitcoin will still be there in the future with the great price.and hopefully all the countries taking part to use it as a means of payment. I am very hope that.
Bitcoin is now slowly being accepted by countries like Philippines, Nigeria , Japan and others. Of course this acceptance will be followed by some legal conditions and policies so that illicit activities will not occur especially money laundering that will destroy the economic condition of a certain country. This rules and regulations including agency monitoring how bitcoin is used is a good sign that bitcoin is near the mainstream and those policies will protect us from scammers and hackers that are planning to take away our btc.
You are correct. I heard news this morning that some banks began accepting bitcoins. And no bitcoin will thrive in the future. It will thrive with digitalized fiat currency.