In my opinion Bitcoin is an archetype of cryptocurrency. It's just a pure speculation. Future are alt coins with some value. There is Eth platform and Neo platform. There is Nebula Network, rock stable crypto thanks to emission mechanism tied to their supply. It's something more innovative than PoW or PoS. It's worth to follow this project imo.
The future of bitcoin looks certainly great. I believe bitcoin has really done well with blockchain technology, this is the future of the world of modern technology. I believe, we need to encourage the use of bitcoin in our daily business transactions so people can appreciate this absolute phenomenon.