Two things could take XRP back to $3.84. Either roughly $242 billion flows into it, or something starts locking coins away so the supply available to trade shrinks.
The XRP Ledger's lending protocol would be a start, since it would let holders lock XRP into vaults that fund fixed-term loans and pay a set return. It has been waiting on validator approval since January, and only about a fifth of trusted validators have backed it against the 80% it needs.
The bigger change would be XRP replacing RLUSD as the settlement asset in Ripple's tokenized fund business. That runs into the problem that made Ripple choose RLUSD to begin with, because institutions will not settle in an asset that volatile, and XRP will keep moving like that until enough of it gets locked away to steady the price.
XRP is still up roughly 18,000% from the six-tenths of a cent it first traded at, so the coin did grow. But all of that growth just came before 2018.$XRP
