A new governance proposal before the Aave DAO has ignited debate about the economics of multi-chain expansion in DeFi. The proposal, if passed, would shutter Aave deployments on six networks — Sonic, Scroll, zkSync, Metis, Soneium, and Aptos — and retire approximately 50 underperforming asset markets across remaining chains.

The Economics of Abandonment

The rationale is starkly financial. According to data cited in the proposal, the six targeted chains generate negligible revenue for the protocol. Deposits on some of these networks have collapsed by more than 90% from their peaks, rendering the operational and security costs of maintaining deployments unjustifiable.

The proposal represents a broader reckoning within DeFi about the costs of multi-chain expansion. During the 2024-2025 bull cycle, lending protocols raced to deploy on every new layer-2 and alternative layer-1 that launched. The assumption was that capturing early liquidity on emerging chains would pay off as those ecosystems matured. For many chains, that bet has not materialized.

Which Chains Are on the Chopping Block

The six networks targeted for closure represent a cross-section of the layer-2 and alt-L1 landscape:

  • Sonic — formerly Fantom's successor chain, which rebranded and pivoted but has struggled to attract sustained DeFi liquidity
  • Scroll — a zkEVM that launched with significant fanfare but has seen diminishing TVL
  • zkSync — one of the earliest zk rollups, now facing intense competition from newer alternatives
  • Metis — an Ethereum L2 that has lost momentum in the crowded rollup space
  • Soneium — Sony's blockchain venture, which has yet to generate meaningful DeFi activity
  • Aptos — a high-performance L1 that has attracted gaming and NFTs but limited lending volume

Beyond these six chains, the proposal also identifies 50 individual asset markets across other networks where utilization has effectively stalled.

What This Means for DeFi's Multi-Chain Future

The Aave proposal signals a potential inflection point for DeFi governance. After years of growth-at-all-costs expansion, major protocols are beginning to audit their deployments with cold financial discipline. The question is no longer "how many chains can we deploy on?" but rather "which chains actually generate meaningful economic activity?"

If passed, the proposal would consolidate Aave's presence on its most profitable networks — likely Ethereum mainnet, Arbitrum, Optimism, Base, and Polygon — while reducing the protocol's attack surface and governance overhead.

User Impact and Migration

For users currently supplying or borrowing on the affected chains, the proposal would include a wind-down period allowing positions to be closed or migrated. However, the mere discussion of shutdowns could accelerate withdrawals as users preemptively move liquidity.

The Aave DAO is expected to vote on the proposal in the coming weeks. If it passes, it could set a precedent for other DeFi protocols facing similar multi-chain bloat — potentially triggering a wave of deployments being retired across the sector.

For an industry that once celebrated every new chain launch as evidence of expansion, the pullback marks a mature, if sobering, shift toward sustainable economics.