Unlikely that anyone will even try to target desktop/laptop market with a RISC-V CPU, it is a very established market without much future growth. The plays will be in embedded devices, especially areas which requires pheripherals with tight integration with the CPU, this is where an open and extensible ISA can be a significant benefit. Examples today are controllers inside SSDs/SDcards. In future maybe also microcontrollers with integrated machine/deep learning co-processors.