According to former MEP, professor and senior member of the Constitutional Convention that drew up the dreadful document Olivier Duhamel, the Constition has great significance in relation to the constitutional position of monarchs as heads of State. Talking on his monthly TV political column on the Frankenriech TV channel Arte, "Standpunkt" Duhamel pointed out that the EU is not only formally a republic, but there is supposed to be considerable citizen participation as well. In this regard the EU Constitution is of great significance to the future of European Monarchies. From what I understand he suggested that they would have to be stripped of any remaining Constitutional role as it would be incompatible with the democratic process. (Religious equality –Act of succession – male primogeniture )
I am aware that the Queen's position as Head of State of a bunch of Commonwaelth nations is covered in Article IV Para 3, but it does throw up awkward situations. Consider the Queen (EU citizen - thus governed by EU laws) appointing a Governor General of Australia; her Constitutional duty; according top a request from the Australian Prime Minister. Imagine that that appointment went counter to some yet unknown rule in the EU. Could the EU veto the appointment of the Governor, due it being done by an EU citizen?
Thus should Australia have a ratification process as it may find its own Constitution altered?
I only ask.