indeed recently the price of bitcoin has fallen dratis, in comparison with 2017 is very high.
but I'm sure that by the end of 2018 it will definitely soar again.
We will not have to end for the end of this year in my opinion, it has already started happening from last few days. We will see similar behavior multiple times this year followed by price correction. This s because a lot of people had invested at high price levels and they would like to cash out when price rises.