Don't really think it will reach 20k in less than one month. It will probably stabilize on it's actual price for a while now that we just passed a moment of frenesy.
Unless something drastic were to happen like government bans or exploits were discovered, it could easily continue upwards.
I this this guy is right. Unless some major issue comes up, it could easily proceed on growing like it did in the past years. Don't really know how fast will it be but it has the potential to reach a value way greater than 20k, if given enough time.