They're looking to be a while out there, but there are solid use cases that will absolutely require decentralized storage for progression to continue.

Possibly the most important potential applications, IMO, of decentralized storage can be found browsing the articles on sites like this:

https://futurism.com/enhancedhumans/

A few in particular:

https://futurism.com/new-tech-is-giving-humanity-many-potential-paths-to-immortality/

https://futurism.com/darpa-is-working-on-enhancing-human-senses-with-computers/

https://futurism.com/neuroreality-the-new-reality-is-coming-and-its-a-brain-computer-interface/