In 2025, Layer 2 projects like zkSync, Starknet, and Scroll may launch airdrops. zkSync, backed by Matter Labs (raised $200M+ from a16z, Blockchain Capital), targets Ethereum scaling with ZK-rollups, promising high returns from past airdrop trends. Starknet, from StarkWare ($100M+ from Paradigm, Sequoia), leverages ZK tech for privacy and scalability, with strong ROI potential due to its innovative team. Scroll, supported by Polychain and Sequoia ($80M+), focuses on Ethereum compatibility, hinting at retroactive rewards for early users. All have robust teams and ecosystems, suggesting lucrative airdrop yields.