I'm happy to report that the process of revising the XMPP RFCs has passed another milestone, with IESG approval of the following Internet-Drafts:
(The last one wasn't produced by the XMPP Working Group, but it's normatively referenced from draft-ietf-xmpp-3920bis so I consider it part of the overall package.)
These documents now migrate over to the RFC Editor team for editorial processing (reference checking, copy editing, proofreading, and the like) and final author approval (known as AUTH48). If all goes well, we should have shiny new RFCs by the end of the first quarter, enabling us to leave RFC 3920 and RFC 3921 behind as canonical documentation for the foundation of Jabber/XMPP technologies.
Thanks again to everyone who provided feedback on these specifications!