Bitcoin's two decades aren't completed yet and still it got some good growth within short time. As compared to other assets Bitcoin has show impressive growth and it will continue to grow no matter what.
I know it's still not possible to accurately predict the future of Bitcoin but from its recent performance most people are convinced now that Bitcoin can grow big in future.
Although, most of us are convinced that Bitcoin is a stable and a growing asset but none of us should be 100% sure that it won't fail. It's the community that can keep it alive and allow it to grow.