People will say "Bitcoin is dead, Bitcoin has no future anymore and etc etc". People will definitely use these phrases just to bait people to sell more and make people panic because of these words. If you are brave enough, I would prefer to just buy it when it would ever hit $8k and check if it's a good price to stay on, otherwise I would wait more if the price would ever continuously dipping.
If bitcoin reaches such a low price, then the psychological moment will turn on and people will simply be afraid to buy anything. At such moments, the maximum fear is turned on and people will simply watch without any action. Of course there will be a small percentage of people who will buy and they will, but the laws of large numbers always work the same way.
There are people who will take advantage of this momentum, experienced traders who knows what's the value of long-term investment, even it will take some time as long as they know that the market will soon be bounce back and give them the profits that they desire to have. We don't know if how low the value will go but if you have spare and you can buy little by little, just hold and wait for the market to bounce and let you earn decently.