According to BlockBeats, on August 13, Optimism developers plan to introduce interoperability between various Layer 2 chains in the ecosystem - such as OP Mainnet, Zora, Base, etc.

Layer 2 chains (also known as Superchains) within the Optimism ecosystem currently rely on the Layer 1 Ethereum mainnet for secure communication and asset transfers, which leads to fragmentation of assets and users. Developers plan to introduce native interoperability in Superchains, aiming to enable cross-chain asset and user portability and make it accessible anywhere through integrated applications.

The goal of the interoperability solution is to make Superchain operate like a single blockchain - allowing users, assets and developers to move seamlessly between networks. (The Block)