Lopp calculated the seven-year trend of Bitcoin price based on daily value change. With the exception of 2014, which was affected by the downfall of now-defunct Mt. Gox, Bitcoin has continuously recorded positive daily value change since 2010.
Bitcoin average DAILY value change:
2010: +0.82%
2011: +0.76%
2012: +0.26%
2013: +1.11%
2014: -0.25%
2015: +0.09%
2016: +0.22%
2017: +0.66%
https://cointelegraph.com/news/bitcoin-price-will-hit-250000-by-2020-if-seven-year-trend-continues
but I donot think bitcoins worth would be that much.ever cause you have also consider the total volume in circulation.
and multiply that with the number you think bitcoins value would be.
We in world doesnot have that much of wealth to put in to any currency.
so its not possible.