What can be big enough news?
New world reserve currency, or pegging to SDR.
Adoption by banks as their reserve currency, or as their only means of transaction between banks.
Pegging of USD to XRP (highly unlikely)
PetroRipple.
Gold miners accept Ripple only, no USD (the Federal Reserve has shares in one big gold miner).
Most of the above seem unlikely, but the insiders keep the secret to enjoy the surprise.
If you already have it, keep it until December or longer.

There may be other possibilities, more realistic, such as recognition by Amazon/Ebay/another big company.
It is better than holding STEEM, unless you are a Youtuber/DailyMotioner that wants to reward his crowd and increase exposure to grow it more.