Ethereum Foundation has long-term plans to transition all protocol layers to zero-knowledge proofs.

Quotes that support claims

Ethereum is going all in on ZK. Eventually we expect to migrate to using ZK proofs at all levels of the stack, from consensus layer signature aggregation to onchain privacy with client side proving, and upgrade the protocol to be simpler and more zk-friendly.

Ethereum signaled its long-term vision: a blockchain where ZK proofs touch every layer, from consensus signature aggregation to privacy features powered by client-side proving.