i have read tons of prediction about BTC price by the end of 2018, going from 1million dollar back to 500$ each.
Guess what? we can't know what will be the price, you can sort of foreseen on a weekly basis but by the end of the year it's almost impossible.
Like most of the users already answered, this will not happen because there is way to much attention dragged to BTC and at this point, the lowest it can be around 10k or a bit less.
There are way too many people involved, companies and investors to let it drop to nearly 0.. on the other hands, everything can happen just depend on the environment around BTC and crypto in general.
Even the experts are having a hard time in predicting the value of bitcoin, honestly, I don't know what to do with my holding but what's in my mind is to just hold what I have, if it will be worth a $500 let us see, but I think it could not happen, it will still recover after a month, so I'll just patiently wait for it.
Just be patient and dodn't freak out because for sure this is just another run of pump and dump. If you freak out you will just contribute to the markets rundown of price.