Ark 21Shares has updated its Ethereum ETF proposal to include potential staking and cash creation adjustments, similar to its Bitcoin ETF proposal. The update anticipates discussions with the SEC and outlines the possibility of staking Ethereum through trusted third parties for income, while acknowledging associated risks. This amendment is seen as a significant move that could impact the staking industry and the development of distributed validator technology. Bloomberg analysts estimate a 60% chance of SEC approval for the spot Ethereum ETFs in May, though there's skepticism about the inclusion of Ethereum staking.