The EigenLayer airdrop has the potential to impact ETH staking returns. It may introduce additional incentives for stakers, such as bonus tokens or enhanced rewards. This could increase the overall return on staking, attracting more users to stake their ETH. However, the actual impact depends on the airdrop's scale and how well it integrates with the existing staking infrastructure. If implemented successfully, it could boost the attractiveness of ETH staking and potentially increase the amount of ETH locked in staking.