I think, in the end of this year bitcoin will be 4000$.
Bitcoin price will reach 4000$ at the end of 2017.This will achieve only due to increasing in bitcoin users. Many investor inverse their money on bitcoin.If they keep that till the end of the year. They surely became rich too.This happen only due to the factor ,bitcoin price gradually increasing day to day.
The possibility to reach $4000 to reach by the end of the year has got lot of possibilities. I believe this happens just based on the increasing adoption as well on the stabilized growth happening with the bitcoin price growth. One who believe and invest now will surely becomes rich in a short.