I would not do this, please note that already this was merged Getting extensions into the ActivityStreams 2.0 namespace and there is incredible much input in “Towards AP v2” now.
This session should really be about how we could optimize federation.md towards machine readable discovery. redaktor is currently desperate and sad cause of missing interoperability and only a few caring about https://www.w3.org/TR/activitypub/#conformance 