I think it's possible. Of course, it depends on price of Bitcoin itself. If it costs 10$ than I think everyone can get 1 BTC in one year. But if talk about current price. I guess if you will join and few campaings and will work hard, then it's possible to earn 1 BTC through this work. It will take as much time as many bounties you will take a part in. And how much you gonna get will selling the tokens is depends on you. Holding or selling, bulling or bearing etc. But still, it's possible.