If you see the bitcoin price movement from past few months, then you will find that the price is not been moving to a stable price behavior and i have been watching this unstable movement from past four to five months on a consistent basis and so i would say that it is not wise to declare the price levels of the bitcoin prior and even though if you are taking this as a rough estimate then I would say that it will merely touch $12000 to $15000 price level at this year 2018 end only if there is a rising demand after the May month.