According to Odaily Planet Daily, Manta Network community users initiated a proposal in the governance forum to migrate Manta's Polkadot parallel chain Manta Atlantic. Potential options are to build a custom chain based on Cosmos, or to build an independent Layer1 chain similar to Solana and Sui.
Odaily Note: Manta Atlantic is the parachain network previously launched by Manta based on Polkadot, and is not Manta Pacific, the Layer2 network that Manta is currently focusing on developing.
