.:Update, again:.
http://www.cnn.com/2005/WORLD/europe....ap/index.html
Apparently, Camilla
can potentially legally become queen someday, even though Charles' PR office has said that she would remain as HRH the Princess Consort when he ascends to the throne.
"The Department for Constitutional Affairs confirmed that interpretation, saying that legislation would be required to deny Parker Bowles the title of queen. Similar legislation apparently would be required in more than a dozen countries -- such as Australia, Jamaica and Canada -- in which the British sovereign is the head of state."