Ercoin 1.0.0 has been released. The launch of the main network is scheduled to happen on 2020-01-23 00:00:00 UTC.
The initial proposed launch date of 2019-12-15 00:00:00 UTC was delayed because of some IBO-related issues and also to wait for the release of Tendermint 0.33. See the issues #8, #9 and #10 in the main repository for details.