Eleven royals detained as Saudi crackdown widens - Reuters TV

A good old fashioned "consolidation of power". The Defense Ministry, Interior Ministry and National Guard now all under the control of one clan.
With his clan controlling those three factions, it's easier for the Crown Prince to make the the economic and social changes that he has planned. Women can start driving next year and plans to open cinemas among other things. Also talking of offering up part of the state oil company in an IPO. He plans to diversify and gradually wean Saudi Arabia off of oil.

Should be interesting.

Bet someone's blood pressure is up and boiling.

This is getting even more interesting.