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You're not aware of it, but it already has, for instance in hard disks (Western Digital), or as auxiliary processors (Apple).
Thanks to the modularity of the ISA, minimalistic RISC-V processors can be added wherever needed without incurring the costs and delays of supporting a proprietary ISA (e.g. creating an optimising compiler, porting Linux and applications).
Linux has RISC-V support, and Android too (though there's still some work in progress). Competitive IP exists, targetting all use cases from smartphones to the data centre. So yes, it will still take a few years before you can buy actual hardware, but it's underway.