Vitalik Buterin published a proposal in the Ethereum Magicians forum to replace the EVM with the RISC-V architecture as part of a long-term plan to simplify Ethereum’s execution environment while preserving its core functionality.

Quotes that support claims

Vitalik Buterin, in a new blog post on the Ethereum Magicians forum, floated a 'radical' long-term proposal for the blockchain network's execution layer: replacing the Ethereum Virtual Machine's (EVM) bytecode with the open-source RISC-V architecture.

Vitalik Buterin has proposed replacing the current Ethereum Virtual Machine (EVM) contract language with the RISC-V instruction set architecture