Honestly, it's difficult to predict about Bitcoin price in 2020, even for experts. However we have seen incredible hype and excitement in just a few short years. As to my opinion, it's quite possible that bitcoin price may hit around 20k$ again in 2020
If the overall crypto space stays positive the upcoming time 20k would not be unreasonable.
Chico Crypto just released a video with a couple of reasons why 20k could be hit again.