Actual release date would be bad idea, I think. It is rare that such dates are met by modders so for people who are aware of it it will be meaningless and it will get other people angry/dissappointed. The modders are doing this for free in their own free time and real life issues mean they have an unreliable time to do work on the mod.
Maybe occasionally an update of a few lines to let us know what has been done in recent weeks.