Will this spike be prolonged? Or a few months?

I can't really know. If I was going to bet on it, I'd say years. Unless we completely crush Iran so they can't even launch drones, they'll launch drones (and other attacks through their proxies). Hormuz will be a very dangerous area, and I wouldn't be surprised if they disrupted hydrocarbons everywhere they can.

At this point the world better hope for regime change, as that is -probably- they only way to stop them for quite a while. I heard their council of elders (whatever they call it) was hit, and they were supposed to be responsible for naming a successor. Not sure what the status of that is. Actually, I can't now verify the story, so maybe it didn't happen? That's what we would have to do since they appear to have some depth to their regime.

Or we could quit, go home, and say "our bad...we elected a moron". That's at least 3 years away.