We can not say how much bitcoin is worth after five years because the price of bitcoin is so new and it does not stay at its price and sometimes it decreases the value. so we do not know how much the bitcoin cost after five years.
Well, i think bitcoin price after five years it will be $75,000 each value because many new users and investors together with a product who will get involved and make interested if each year will make a huge increase in the market forgeting the dip of price or fork because that is normal situation of the supply and demand. Capacity of blockchain is somewhat an estimation to cater a much higher price in the market that it will surpass a per year highest record of bitcoin together with the volume of users is concerned.