According to the discord announcment:
The final snapshot for the Umeemania Incentivized Testnet will be taken on June 12th. If you have been an active testnet participant, no action is needed at this time in order to be eligible to receive a token reward. The Umeemania testnet will continue running without incentive after the final snapshot. More features and protocol upgrades will be released there, and community members are encouraged to continue familiarizing themselves with the web app while testing new features. Thank you all for helping Umee prepare its mainnet lending facility, and be on the lookout for another announcement next week!