Testnet will be launched in Q3 2019.
Will testers receive rewards?
Testnet will be used first by developers only and then by users for testing and debugging to ensure an error-free transition to mainnet. Rewards are admissible.
to add to that, users will be able to run regular masternodes at any of the phases. After the mainnet launch, users will be able to earn on providing the computing power of their computer to the global network, as well as to rent any amount of computing power.