And to do that, she must live so long to ensure that William will become King.
Maybe one of the British Freepers could clarify this, but couldn't Elizabeth II abdicate in favor of William if she wanted to?
Camilla will never take her place, period. The succession is Queen Elizabeth II to Charles to William then to Harry. Camilla is NOT in line for the throne. IF Charles ever takes the throne, she is consort to the king - nothing more.