CODX test became marketable by ABMC on Oct 7th. 4th Q can have some antibody and some CODX. (The Rapid Antigen test was mid dec) (I'm not aware of any hold ups with the CODX or Rapid Antigen tests, do you have sources?)
Already discussed on this board how Chaim Davis's leaving can be a good sign (or at least not negative) As far as I know, he is still in good terms with the company.