At that point Iran may find itself in a similar position to Japan in mid-1941. They would need to either go to war, or wither away as their oil revenues were no longer enough to support their economy (or be overthrown in revolution at the point where they could no longer support their welfare state).
I am beginning to think that Iran is becoming the perfect political unrest barometer of the world.
Every time there is something that comes along and scares them they start a rhetoric or do some stupid antic, latest being this US aircraft being detained.
So very predictable Iran, you are as children in a day care center.