According to the source, Ethereum is rolling out an interoperability layer aimed at a single unified chain, signaling a push to make rollups communicate more seamlessly; source: the provided post dated Nov 20, 2025. This direction is consistent with Ethereum’s rollup-centric roadmap that emphasizes scalable, interoperable L2s; source: Ethereum.org Roadmap. Past core upgrades such as Dencun on March 13, 2024 reduced L2 data costs via EIP-4844 blobs, influencing L2 fees and activity that traders track around ETH; source: Ethereum Foundation blog (Dencun and EIP-4844). Related assets to watch include OP for Optimism and ARB for Arbitrum as primary rollup ecosystem tokens; source: Optimism Foundation and Arbitrum Foundation.