Why would you ask if bitcoin have a future? Don't you believe it has a future? I myself believe it is the future, imagine before it was almost worth nothing but look at its value now. I bet Satoshi Nakamoto wouldn't believe it too it has reached almost $3000. So to answer your question, my answer would be Yes without a doubt it has a future.
It has future if we believe in bitcoin but maybe satoshi nakamoto did not expect that his creation had reach almost $3000 dollars. I myself believe in bitcoin too and it will go at $5000 or $10000. We need to have faith on this.
I think that the question of whether Bitcoin has a future does not make sense, because there would not be such a demand in the market. We really see What is the current price for Bitcoin and according to forecasts of users and experts, we already have much more of yours several times. Therefore, the future will be really very bright.