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.
I believe the same, people support BTC so it will not get lower than 8k, most likely will be brought up to 20k by March as per my predictions too. Unless we keep experimenting bad news from big players such as China and Korea for sure...