UBL 2.0 and Schema Extensibility

["Fraser Goffin" <goffinf@googlemail.com>]

Where can I find more information (docs) that describe any proposed
approaches within UBL 2 schema to include extensibility within content
models (e.g. xs:any). I have seen the odd comment on this list, but I
can't locate anything more concrete on the OASIS site. Is their a
draft NDR or similar ?

Regards

Fraser.