No one can really tell if it will go back up or go down below $5k. The fluctuations of bitcoin is unpredictable. What we need to do is just wait until the end of the year. I'm very positive that on December 2018, the value of bitcoin will recover and hopefully will touch around $12k. This sounds vague but its very much possible. As we try to look at the previous performance of bitcoin during the end of the year, we can really tell that there are more investors that are buying more coins on the month of December and bitcoin will always reach its ATH on this month. History may not repeat itself this year but hopefully we can see a bull run any time soon.