Not gonna happen for anything big enough like a server or laptop class of computers. There is too much gap in terms of software to justify adopting a new ISA. A

Not gonna happen for anything big enough like a server or laptop class of computers. There is too much gap in terms of software to justify adopting a new ISA. Also, designing those high-performance ISAs cost a lot of money, both in terms of professionals involved but also resources. Any company attempting that will need to make sure there is software to run on it and that they can make money. That is beyond the reach of a lot of companies.