In Yemen you have the warlords, the al Houthis who are funded by Iran, the Royalists, the Communists, Al Qaeda in the south and al Shaabab from Somalia have arrived.
Currently their oil production has slowed to a trickle because of sabotage, 500 factories have closed, people are starving and the place is awash in guns. Saudi Arabia built a couple of colleges in Yemen, gives them gasoline and foreign aid.. in part because that northern border with Asir is porous and really difficult mountain terrain.. KSA is vigilant in stopping weapons and terrorists from crossing into Arabia.
Its hard for me to comment on Bahrain.. I have American friends who have lived there for decades and they say its been grossly hyped.. a propaganda war. The day of the massive riots that were televised 300 Americans crossed the causeway for a big golf tournament.
Most think its yet another effort by Iran to gain a foothold on the Arabian peninsula.
The MB are not the same MB of the 1950s and 1960s... They have matured alot and have become far more politically savvy and inclusive.
Iran also has a Christian population.. 73 registered denominations and 600 churches. I think the Christian population of Syria is smaller but every bit as old. I just don't know much about their relationship with the Assad regime.
Syria is less tribal than Libya.. and I don't think you could call any Syrians overlords.
I don't have any gift for prophecy.. I just try to keep track of the changing details.