in my opinion, the market will begin to improve in early 2019, and the bull market will start from mid 2019. and I predict that bitcoin prices can reach $ 25k by the end of the year.
We don't need to wait next year. If we want to see bitcoin price up more than 20,000 dollars we need to work on that. But I think in the yeat 2019 bitcoin will be more better and price continue to increase on that year because many investor again will invest to bitcoin.