There is no deadline for migrating Flexacoin to Amp. Because the migration from Flexacoin is supported directly within the Amp token contract, it will always be possible to migrate from FXC to AMP for as long as the Ethereum blockchain is online.

If you do not withdraw your FXC from Flexa Capacity, the Flexa Capacity dApp will—for the foreseeable future—continue to remind you to withdraw your balance and either migrate it to Amp or transfer it to another wallet.

The only important date related to the migration from Flexacoin to Amp is September 30, 2020, which is the date at which the Flexa network will stop longer using Flexacoin as collateral, and after which Flexa Capacity will no longer distribute network rewards based on Flexacoin balances.

We believe that Amp improves upon Flexacoin in every way, and opens up endless new possibilities for improving collateralization on the Flexa network that were never possible with Flexacoin. As a result, we have no plans to support Flexacoin in any Flexa products after September 30, 2020.