I think possibly bitcoin price will touch $ 20000 until the end of 2018 and this will keep on growing from yearly, however, $ 40000 its quite big dream
I have the very same opinion. bitcoin is indeed going to easily be at 15,000 dollars by the end of this year because we are just left with little time before 2018 starts and bitcoin is fluctuating around 12,000 dollars. 40,000 dollars will be achieved by bitcoin in the coming year. I am pretty sure that in the last few months of 2018, bitcoin will be moving around the figure of 40,000 dollars easily. Lets all hope for something good.