I think its very posibble to happen, now that its only 1st month of the year and too early to become hopeless. I bet before the year 2018 overs, The price of bitcoin will smoothly reach the $20K before the year ends.
Before the end of 2018 is too long to be honest I feel that bitcoin will reach the feat of $20000 by next three months as first few months of the year is harsh for crypto coins then it goes wild after the correction and since we are in correction period now we cannot predict much but I think 20k will be achieved way before the end of this year.