It won't come back... This is called an exit scam. Billions of dollars will just up and disappear like a fart in the wind.
All investments are ponzi scams=> You work to sell your crap (coin, stock, bond, product, service, social security, medicare, obamacare) to someone else for more than you paid for it.
Don't be so quick to jump to conclusions. You lose credibility by doing that.