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The 2026 plan for Ethereum outlines a validator risk that may be more significant than anticipated.
Ethereum’s roadmap for 2026 focuses on two main avenues: enhancing rollup data capacity via blobs while increasing base-layer execution through modifications to gas limits.
These gas limit modifications rely on validators transitioning from re-executing blocks to validating ZK execution proofs.
The initial avenue is already established by Fusaka, which was released on December 3, 2025.
Fusaka
Fusaka introduces PeerDAS along with blob parameter only (BPO) adjustments that can incrementally enhance blob throughput, as stated by ethereum.org.
The second avenue is less structured as it depends on draft EIPs, client implementations, and validator activities that must adhere to decentralization limits, including bandwidth, block propagation, and proving market structure.
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PeerDAS is identified as the most straightforward “capacity ramp” mechanism since it is designed to enhance rollup data availability without requiring every node to download each blob.
According to ethereum.org, blob targets do not increase immediately upon activation but can double every few weeks, reaching a maximum target of 48 as developers observe network health.
Optimism’s team characterized the upper-end scenario as “at least 48 blob targets per block,” alongside a rollup-side throughput increase from approximately 220 to around 3,500 UOPS under that target, as per optimism.io.
Even within that context, the key question for 2026 is whether demand manifests as blob usage instead of driving up Layer 1 execution.
Another unresolved issue is whether peer-to-peer stability and node bandwidth remain within operator tolerances as BPO rollout progresses.
On the execution front, Ethereum is already experimenting with higher throughput through coordination rather than a hard fork.
GasLimit.pics reported a current gas limit of 60,000,000, with an approximate 24-hour average of 59,990,755 at the time displayed.
This level is significant as it serves as a reference point for what validators have accepted in practice.
It also highlights the limits of “social scaling” before latency, validation load, and mempool and MEV pipeline strain become constraining factors.
A straightforward method to convert gas limit discussions into throughput ranges is gas per second, utilizing Ethereum’s 12-second slot time (gas per second equals gas limit divided by 12).
The following figures maintain clarity in the calculations and distinguish base-layer EVM transactions from rollup throughput assertions.
| Scenario | Gas limit | Gas/sec (≈ gas/12) | Tx/sec at 21k gas | Tx/sec at 120k gas |
|---|---|---|---|---|
| Current coordination level | 60,000,000 | 5,000,000 | ≈238 | ≈42 |
| 2× gas limit case | 120,000,000 | 10,000,000 | ≈476 | ≈83 |
| High-end case (requires validation change) | 200,000,000 | 16,666,667 | ≈793 | ≈139 |
Glamsterdam
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The upcoming 2026 upgrade, referred to as “Glamsterdam,” encompasses several execution-focused concepts, including enshrined proposer-builder separation (ePBS, EIP-7732), Block-Level Access Lists (BALs, EIP-7928), and general repricing (EIP-7904).
Each of these remains in draft status, as indicated by the EIP pages for EIP-7732, EIP-7928, and EIP-7904.
Repricing aims to address gas schedule discrepancies that have persisted for years.
It posits that rectifying mispriced compute can enhance usable throughput while recognizing DoS risks and the reality of contracts that hardcode gas assumptions, according to EIP-7904.
BALs are described as infrastructure for parallelism.
The EIP mentions parallel disk reads, parallel transaction validation, parallel state-root computation, and “executionless state updates,” estimating an average compressed BAL size of about 70 to 72 KiB as overhead, according to EIP-7928.
In practice, these benefits will only materialize if clients implement concurrency across the actual bottlenecks.
They also depend on whether the additional data and verification steps do not introduce their own latency costs.
ePBS is central to both MEV and throughput discussions as it seeks to separate execution validation from consensus validation temporally, according to EIP-7732.
This temporal slack is also where new failure modes may emerge.
An academic study on the “free option problem” for ePBS estimates option exercise at approximately 0.82% of blocks on average under an 8-second option window, reaching about 6% on high-volatility days in its modeled conditions, according to arXiv.
Ethereum in 2026
For planning in 2026, this research emphasizes the importance of liveness under stress, rather than just steady-state fee outcomes.
The more structural bet behind “very high” gas limits is the adoption of validator ZK-proofs.
The Ethereum Foundation’s “Realtime Proving” roadmap outlines a phased approach where a small group of validators initially operates ZK clients in production.
Only after a supermajority of stake is comfortable can gas limits increase to levels where proof verification supplants re-execution for practical validation on reasonable hardware, according to the foundation’s July 10, 2025 post on blog.ethereum.org.
This post also outlines constraints that are crucial for feasibility rather than narrative, including targeting 128-bit security (with 100-bit accepted temporarily), proof size under 300 KiB, and avoiding reliance on recursive wrappers with trusted setups, according to blog.ethereum.org.
The scaling implications are linked to proving markets: real-time proof supply must be affordable and credible without concentrating into a narrow prover set that replicates today’s relay-style dependencies in another layer of the stack.
Following Glamsterdam, “Hegota” is positioned as a later-2026 named slot that focuses more on process than scope.
The Ethereum Foundation released a headline timeline with a proposal window from January 8 to February 4, followed by discussions and finalization from February 5 to February 26, and then a window for non-headliners, according to blog.ethereum.org.
A Hegotá meta-EIP exists as a draft (EIP-8081) and lists items as under consideration rather than finalized, including FOCIL (EIP-7805) as currently under review, according to EIP-8081.
The immediate reporting value in that timeline is that it establishes dated decision points for investors and builders to monitor without inferring commitments from codenames.
The first is that Hegota headliner proposals will close on February 4.
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