W3C should say yesApril 11, 2007
If 4.0 – 4 .01 are properly deprecated and we don’t get to a 5.01 kind of mess, then this is a good idea if meta is dealt with well. (I know that’s an XML/RDF thing). Proper documentation is the key. Watch Microsoft introduce their own ‘standard’.
Just being a largely uninformed cynic.