Ethereum is finally on the verge of solving the interoperability problems that have plagued the ecosystem since the layer 2 roadmap started to take off a couple of years ago.
This year, users can expect to see easy crosschain swaps between L2s, new chain-specific addresses that are human-readable, trustless crosschain messaging and the launch of innovative “unified liquidity” bridges like Polygon’s Agglayer.
With the first of the upgrades going live in the next few weeks, ecosystem leaders from Base to Across predict it’s only a matter of time before Ethereum will feel like Ethereum again.
“The move toward fast, standardized interop isn’t just a technical upgrade — it’s essential for making Ethereum feel like one seamless ecosystem,” explains Across co-founder Hart Lambur.
“When chains can interact in two seconds or less, the vision of a unified Ethereum comes to life.”
Lambur revealed that the audited code for Across and Uniswap’s new intent standard (EIP-7683) will be deployed within the next week, with crosschain orders starting to flow through the decentralized solvers system “in the coming weeks.” Fifty projects and protocols are supporting the new standard, including Polygon, Arbitrum, Optimism, Base and Uniswap.
Ethereum interoperability: What’s changing in 2025
In the last bull run, Ethereum had a scaling problem. Gas fees peaked at $200 per transaction as a deluge of users competed for blockspace. Layer 2 rollups like Base, Arbitrum and Optimism emerged to fix that issue and have successfully scaled transactions by 15 to 20 times, with fees now counted in cents.
Unfortunately, it’s left Ethereum with 55 new rollups that are all effectively isolated from one another. Users have to muck around with expensive and risky bridges to move between them. The lack of cohesion and interoperability has weighed heavily on ETH sentiment and price.
Ethereum transactions have grown by 15x-20x (CoinGecko)
Mallesh Pai, the senior director of research at Consensys, says the…
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