The Saudis will step in. They have to. Both sides, ISIL and Iran hate them. They cannot count on us to help this time as our president is on the other side as well. $5 or more a gallon of gas before long. This conflagration will consume much.
I would not be surprised if ISIS or ISIL is going to try to drag in Israel in. That will be their first and last mistake. Do not mess with Israel.