I think that BTC will then be $ 25,000.

Why:

1. Now it's 18. After 15 days, it will rise to 20,000, and then it will sink to 17-15000 due to sales of those who bought BTC for $ 20,000 in 2017.
   Then the price will go up, breaking through both 20,000 and 22,000 (the remaining sellers will not want to sell at a profit of 10%). 25000 is 25% profitability. Therefore, this price will be the maximum. And whether it will be on December 31 or earlier, I don't know. But in the range of 22000-25000 $ per BTC will be.

Although any forecasts are nonsense, but I Express my feelings.