The odds for Kate and Williams, seventh.. sorry third baby (or 'Another Porker!' as Kay Burley calls it!) are still available online. The gist seems to be hat there's not a dead cert as such, so clearly the couple have been keeping tight lipped about it.
These are the current betting odds: Alexander - 3-1 Louis - 5-1 Arhur - 3-1 James - 6-1 Albert - 6-1 Philip - 12-1 Henry - 16-1 Edward - 20-1