Buterin expects Ethereum's 2027 Hegotá fork to be the last one a 2015 user would recognize

Across both accounts, Hegotá is the only upgrade with a year attached; neither reports a date or a cost for anything after it ^[1][7]. Buterin placed it in 2027 and said it is likely the last upgrade whose features someone familiar with Ethereum in 2015 would still recognize ^[2]. On those two years, the original design runs about 12 years before the rebuild begins ^[9].

The design that follows is concrete enough to test. Buterin described the destination as a "cryptographic world computer," with nodes moving beyond simply downloading and re-executing transactions and the chain combined with cryptographic verification, privacy and decentralized offchain components ^[4]. The pseudonymous commentator Cryptographic used DeFi lending as the example: collateral analysis, liquidation routing and the matching of borrowers and lenders would happen offchain, and Ethereum would verify and settle the outcome ^[11].

For an ETH holder, that changes what the base layer is used for. In Cointelegraph's description, more computation moves offchain while the base layer verifies results, settles transactions and preserves access to shared onchain state ^[6]. If verifying a result asks less of the chain than executing it did, the same fee revenue has to come from more transactions. Proof-based lending would then have to arrive in volume.

Gabriel Shapiro, a crypto lawyer, questioned how much demand exists for proof-based systems compared with trust-based ones ^[12]. He said many financial services rely on reputation, regulation and legal enforcement instead of continuous cryptographic verification ^[12]. His objection bears directly on fee income. If he is right, Ethereum gets cheaper to verify without gaining much new activity to verify.

CryptoBriefing wrote that market participants seem to interpret the news as potentially increasing Ethereum's long-term value proposition ^[14]. A roadmap with one dated milestone is hard to turn into a price. It could go a few ways. Hegotá ships in 2027 and lending of the kind Cryptographic describes follows; Hegotá slips and the rebuild waits with it; or the rebuild ships and Shapiro's doubt holds.

I think demand is a bigger risk than the schedule. The Ethereum Foundation's post-quantum team predates Hegotá by roughly a year ^[15], so the engineering already has people on it, while the lending case exists so far as one commentator's example ^[11]. The view is wrong if proof-based applications ship at volume soon after the rebuild, in which case the schedule is the only open risk left.