First of all, you should be more specific, you are saying crypto in your title and blockchain in the content you wrote. The blockchain innovation is not crypto. Cryptocurrency is built on blockchain and that's all so even if cryptocurrency die blockchain will not because.
The real use of blockchain is not started yet, a lot of big companies are just started to study blockchain and how to integrate it within their system, the revolution of blockchain is just in its beginning and I think blockchain technology will be the main model in the future whether there is crypto or not blockchain technology is here to stay.