I think that for now it is difficult, but over time it might happen to reach 20K, because now if we look at bitcoin it has already been nominated in various countries, it has spread many bitcoin users in each region.
Of course if you just look at the current market its hard for bitcoin to go back on that level but yeah in the right time we will see bitcoin on $20k level again or even higher. Just buy more today and hold until big profit comes to you.