Retaliation has begun Iranian officials say two rockets struck an Iranian tanker traveling through the Red Sea off the coast of Saudi Arabia
https://www.cnbc.com/2019/10/11/explosion-sets-ablaze-iranian-oil-tanker-near-saudi-port-state-media.html
Hard to know exactly what is going and who is responsible for all these attacks (multiple tankers, U.S. drone, Iranian missile on launch pad, Saudi oil facilities) but, this could certainly get out of control.
There was also report this week of plot to kill Iranian general.