Svmuu News: Vitalik Buterin, co-founder of Ethereum, has recently published a series of in-depth technical articles discussing the future roadmap for Ethereum.In his latest post, he focused on analyzing potential centralization risks within the block building pipeline and proposed solutions such as expanding the FOCIL mechanism and introducing encrypted mempools to enhance the network’s censorship resistance.According to the roadmap, Ethereum will launch the Glamsterdam upgrade in the first half of 2026, which will introduce the “enshrined Proposer-Builder Separation” (ePBS) mechanism.This mechanism allows block proposers to outsource block building to a permissionless open market, thereby reducing centralization risks at the staking level.However, Buterin noted that while ePBS prevents block-building authority from concentrating in a few staking pools, block building itself may still become concentrated among a small number of high-level participants due to specialization and maximization of order-based profits (MEV), thereby creating new centralization trends.To address this issue, Ethereum developers plan to simultaneously launch the FOCIL (Forward Obligatory Commitment to Inclusion Lists) mechanism in the Glamsterdam upgrade. The initial version will randomly select 16 witnesses who will mandate that specific transactions must be included in a block; otherwise, the block will be rejected.Buterin stated that even if block building is controlled by a single malicious entity, FOCIL can still ensure that transactions cannot be completely censored. Additionally, Buterin explored the possibility of scaling up FOCIL (“big FOCIL”) and introducing an encrypted memory pool to further mitigate information asymmetry and power concentration in the block-building process.Recently, Buterin has been actively speaking out on topics such as the quantum-resistant roadmap, execution layer improvements, and block-building mechanisms, indicating that the Ethereum core development team is conducting systematic design and risk assessments for the next phase of protocol upgrades.