Hyperliquid is preparing to expand HIP-4, its outcome-markets framework, into a more open prediction-market system.

In an announcement, the protocol said HIP-4 will support permissionless deployments in a future network upgrade, first on testnet and later on mainnet. The change would let builders create markets around discrete outcomes without each market being directly launched by validators, although validators would still decide which templates are eligible.

The template model is the important constraint. Hyperliquid said validators will vote on outcome templates, and that the specifications will be stored and enforced on-chain. That approach is meant to keep markets defined around liquid, public and unambiguous events while still widening the set of possible markets beyond a small validator-controlled list.

CoinDesk reported that HIP-4 went live on mainnet in May and currently supports validator-deployed markets. Hyperliquid's latest announcement suggests those validator markets would become rarer once permissionless contracts are available, with the protocol saying the ideal long-term cadence would be fewer than 10 such markets per year.

The move puts Hyperliquid closer to prediction-market infrastructure rather than only derivatives trading. It also gives the protocol a way to test demand for markets that look more like Polymarket-style outcomes while keeping deployment rules under validator governance. The rollout timing remains open, so the near-term signal is architectural: permissionless outcome markets are now on Hyperliquid's roadmap, but mainnet deployment is still dependent on a later upgrade.