Expecting 5K in very quick time is not a possible value for Bitcoin to develop more easily it takes long time so I definitely know it was not happened in the end of this year but it may possible when Bull Run was long time to make it more higher than the previous year.
2018 has taught us to be skeptical about the cryptocurrency, we now find it difficult to believe that it can again grow rapidly in price, but recently the situation is very similar to the beginning of the bull market and the rate has confidently exceeded $ 4000