[MysticCat]

If it's a boy, my money is on George, Charles, Edward and/or Philip being in there. Maybe Albert. For girls, I'd bet on Elizabeth, Alexandra, Mary or perhaps Victoria. According to the bookies, Charlotte is also good bet.

I go back and forth over whether they'd use Diana, but they well may. It's worth remembering, though, that the name the child goes by isn't necessarily the name the child would use as king or queen. Any of the given names can be used as the regnal name.