Folks:

An important design feature for the next generation bibliographic framework 
will be "catalog code neutrality".  Discussons about "main entry, yes or 
no" should probably be left to the cataloging folks; the new framework 
should theoretically support any approach.

Attempting to restrict the new framework to a reduced element set will 
probably be a non-starter a) since Dublin Core already exists, and b) since 
each and every data element in MARC has been championed over time