Odaily Planet Daily News Vitalik Buterin, co-founder of Ethereum, published an article discussing "Changes in the protocol and pledge pool may improve decentralization and reduce consensus overhead."
The article points out that there are currently two types of Ethereum pledges, one is the node operator and the other is the client. Vitalik believes that both have flaws: centralization risks for node operators and unnecessary burden on the consensus layer.
Vitalik believes that decentralization can be improved by expanding representative options. Representatives can choose which node operators to delegate their interests to. Node operators will have a "weight" in the consensus that is proportional to the total stake delegated to them; delegators can choose to play a role in the consensus, which will be "lighter" than staking in full, and Not affected by long withdrawals and substantial risks, but will still act as a check on node operators.
Additionally, there is value in splitting staking into a slashable tier of higher complexity that functions every session but may only have 10,000 participants, while the lower complexity tier is only occasionally called upon to participate . Lower complexity tiers may be completely exempt from cuts, or may randomly offer their participants the chance to deposit temporarily (i.e. for several periods) and be subject to cuts.
In practice, this could be achieved by raising the validator balance cap and then implementing a balance threshold (e.g. 2048 ETH) to determine which existing validators move into higher or lower complexity tiers.