Hi thanks for the Questions - mainnet will be launched in the 2nd QTR of this year (between May and June).
The current FSN token issued in the token sale is an erc20 token. When FUSION's mainnet is in the production environment, FSN holders will transfer their ERC20 token to native tokens on the FUSION chain. PoW and PoS will both be employed since the consensus of FUSION is the Hierarchical Hybrid Consensus Mechanism. PoS is used to set a limited permission for smart contract calculations to ensure the safety of the smart contracts and PoW is use to select packaging node. The FUSION protocol uses node grouping to realize parallel computing of smart contracts. Every group can randomly select a node to compete for bookkeeping. Since there is competition for bookkeeping not all the nodes and the numbers can be controlled by adjusting grouping numbers, the environmental protection and the safety of FUSION can be well balanced.
Speaking of mainnet, when it is release, will POS/POW systems be fully implemented for token hodlers to start receiving rewards? Seems like a new trend in crypto is starting where people say "mainnet is live" but the staking/mining aspects aren't always live at the same time and that sucks.
Mainnet Q2, I think it will be POS more likely