Re: [role module] is 'must take Curie values' a problem for WAI-ARIA embedding in HTML? (PR#8041)

Al,

The working group recognizes that the dependency on CURIEs is a risk, but is
aggressively progressing the CURIE specification and is confident that it will
become a Recommendation in short order.

As to what the ARIA spec should require with regard to processing role values
that are CURIES (other than the pre-defined reserved values), we make no
recommendation.  It is entirely up to you.  You could dereference the associated
URI and attempt to determine the semantics by examining the RDF at the other
end, for example.  RichS has proposed such a thing in the past.