From what I've read, they plan to end the competition somewhere in Q3, don't think there is an exact date yet. Once that happens, you can get your coins in the wealth app and they will be locked for 12 months. Basically, it's a promotion they are running to get more users on their platform. It will take some time to actually get paid out but I'd say it's well worth it since the daily Bitcoin price prediction game is quite fun and the payout is on the big side.