What is the Future of BitCoin 20 Years From Now

We are now experiencing the efficient, fast and amazing convergence of technologies which one way or the other greatly contributing to the rise of the cryptocurrencies and making Bitcoin as the King of the Hill so far.

Looking into the future...what do you think will be the scenario involving Bitcoin twenty years from now? Will Bitcoin be worth more than a million or will it ceased to exist? Or will a new crytocurrency replace the supremacy of Bitcoin...?

I thought new currency will replace this bitcoin, if bitcoin could not change itself according to the government bodies or coutries requirement.

I thought lot of countries will be start own currency based on block chain technology with some legalities. Bitcoin should be consider the countries leaglities or KYC requirements.