Emre Yumlu 
As Ethereum approaches the launch of its major Fusaka upgrade on December 3, 2025, attention is turning once again to the network’s price dynamics. The update is designed to enhance capacity and reduce transaction costs, positioning it as a significant milestone in Ethereum’s long-term scaling strategy. With ETH trading near critical technical thresholds, the market is closely watching how this upgrade could shape sentiment and momentum.
Key Features of the Fusaka Upgrade
Fusaka represents one of Ethereum’s most comprehensive performance-focused improvements to date. One of the central changes involves raising the block gas limit from roughly 45 million to 60 million, increasing how much data each block can process and helping reduce congestion during peak activity.
Another notable addition is Peer Data Availability Sampling, a mechanism enabling validators to verify data through sampling rather than downloading complete data blobs. This innovation supports faster validation processes and strengthens the efficiency of Layer-2 rollups.
Together with adjustments aimed at boosting rollup performance, these enhancements are expected to lower costs and improve user experience across decentralized applications. Naturally, this has sparked speculation about how the upgrade will affect ETH’s market behavior.
What Past Upgrades Tell Us
Ethereum’s upgrade history shows that major technical improvements can have a measurable impact on price. Earlier in May 2025, the Pectra upgrade contributed to a price rally of more than 30% within several days. Although today’s market environment differs, Fusaka is seen as a broader and more impactful upgrade, fueling optimism among investors.
This sentiment appears to extend to institutions as well. BitMine recently purchased an additional 96,798 ETH ahead of the upgrade, signaling confidence in Ethereum’s upcoming performance.
Expert Expectations
Fundstrat’s Tom Lee maintains a bullish stance despite recent market weakness. He suggests that while a temporary drop toward $2,500 remains possible, early 2026 could bring a surge toward the $7,000–$9,000 range. In his view, any near-term pullbacks are minor compared to Ethereum’s longer-term upside potential.
More cautious perspectives come from technical analysts. CCN’s Valdrin Tahiri notes that ETH recently broke out of a descending wedge but failed to sustain the move, and is now attempting to retest the formation as support. A confirmed retest could pave the way toward the $3,500 region, aligned with key horizontal resistance and the 0.382 Fibonacci level. However, Tahiri warns that long-term indicators do not strongly support this scenario.
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