This draft specifies an associated mechanism to fulfill the DMARC functionality (draft-ietf-dmarc-dmarcbis-36). What it standardizes is within the framework of DMARC, hence brings no extra extension to DNS. I think it is ready from DNS perspective.

And I have an editorial comment for the authors. In this document, “TXT resource record”, “TXT record” and “TXT” are used respectively in different places, referring to the same concept. I think they should be normalized into one item.