Right now? There is no value besides pure speculation. No actual, real-world usage for cryptocurrencies exists today.
Next year? Could be some, at the fringes, but for non-technical people, nope. A year after that? Well, we might see some actual non-speculative usage, even for regular folks. A couple of years after that? Probably, I'd say.
Actual types of usage? I can't predict. Might be smart contracts of some sort, maybe banking for the under-banked (think third world people who don't have much besides the smartphone). Might be game assets that live on blockchain. Might be fee-less international money transfers. Might be crypto-corporations (companies that exist solely as smart contracts on blockchain).
In any case, I'm willing to bet that the idea behind cryptocurrencies won't go away, even though most (if not all) od cryptocurrencies known today will probably fail. We're deep in the Trough of Disillusionment right now, it's going to take at least a few years before we start to climb out.