"The newer generation grew up in wealth, with greater technology and contact with the West - typified by Sultan's urbane son, Prince Bandar, who was Saudi Arabia's ambassador to the United States until he stepped down to return home two weeks ago."
My Way

My guess is that this is when the King actually died, or at least went into a coma, and has just been on life support till now. Giving everyone time to secure the transition. My guess.