locally scoped Class and Property declarations

I want to propose an addendum to the Jonathan Borden's proposal: 
"It is proposed that the algorithm be modified, so that, when the URI of the
namespace ends in a letter or an "_" character, then the URI should consist
of the URI of the namespace concatenated with a "#" character then
concatenated with the localname." [1]

With the following:

When Element node is not qualified, then the URI should consist of a "#"
character concatenated with the localname.

Without it and with deprecating of relative URIs in namespaces 
it becomes impossible to build dynamic RDF documents with locally scoped
Class and Property declarations.

Thanks,

--Nikita.

[1] http://www.w3.org/2000/03/rdf-tracking/#rdfms-qname-uri-mapping