BITCOIN VALUE REACHING 10000$!!!!!!!!!!!!!

Hey all, So finally our favourite Currency BITCOIN is reaching $10000.
Two years from now, I had the opportunity to buy 5 bitcoins worth $10. (I hate myself for not buying it then).
Now ive heard that once it reaches 10000, it'll drop and reach $4000. Is this true?
What will be the future of Cryptocurrencies?