The team are moving back to Arbitrum One. Move assets off Superposition before the expiration in two months (by the 8th of September 2026). Superposition is transitioning to a product hub on Arbitrum One.
For ETH, use the Arbitrum native bridge: https://portal.arbitrum.io/bridge?sourceChain=superposition&destinationChain=ethereum&tab=bridge&sanitized=true or Relay, which is faster: https://relay.link/bridge?fromChainId=55244&fromCurrency=0x000000000000000000000000000000000000000
For native bridge assets (including but not limited to WBTC, ARB): use https://bridge.superposition.so.
For USDC: https://stargate.finance/
For OrbETH, you can bridge it out of Superposition using https://orbit.dinero.xyz/app
9lives is undergoing various upgrades.