I doubt that bitcoin will reach $20k this year. Even though there is a possibility that it will eeach that high again. I think it will take a longer period of time before it will grow again. Because all cryptos nowadays a experiencing serious downfall.
As we experienced a down fall, definitely those who have weak emotions have the difficulties to face the situation. But let's keep in touch and probably by next a couple of days we can see a better bounce back.
Yeah absolutely if not happen now In 2019 it will because the is no such thing as as permanent or stabilize in bitcoin or crypto currency there's always opportunity that would trigger a hype, and those who are patience enough will get a better opportunities.