Aave v4 will boast a unified cross-chain liquidity layer (CCLL), aggregating liquidity from across multiple networks within a single protocol. Aave noted that CCLL would be powered by Chainlink’s Cross-Chain Interoperability Protocol (CCIP).
“Aave can soon scale to become a fully cross-chain liquidity protocol."
https://thedefiant.io/news/defi/aave-proposes-v4-iteration-and-aave-network-validium