For now, I think the price of BTC is unable to return to 20,000 US dollars, because the sharp drop in BTC prices, which has hit the confidence of investors, it will take a long time to recover. But I think in March 2018 may be close to 20,000 US dollars price.
We must wait the stable of bitcoin. Because for now it became lime a roller coaster but we hope so that in near future it became okay until the end.