People are adopting RISC-V not because it is an order of magnitude better ISA, but it frees them from vendor lock-in. Whether it is the one good design to rule

People are adopting RISC-V not because it is an order of magnitude better ISA, but it frees them from vendor lock-in. Whether it is the one good design to rule them all, we'll only be able to tell after a decade or two when the computing/tech world has moved on to different applications. For e.g. what happens when 128b register widths become the norm ? I suspect the base core and may be the FPU will remain relevant (because by then it would be legacy with vast amount of software base), however the other extensions will be superseded/replaced. This will lead to managing the extensions with conflicting encoding like one has to manage different SW library versions.