It is difficult to say whether it will reach $15000 or not in 2017, but I am sure it will reach before the first half of 2018.
Of course the price of bitcoin will reach to that numbers in the next year because the remaining months are enough for the price of bitcoin to adjust and to continue pumping and we can see in the future that the price of bitcoin can be doubled for the price right now which is an exciting thing to wait for the incoming year of 2018.