Iran can block the Strait of Hormuz indefinitely. They are demanding war reparations from the United States. Since Trump won't do that, the best case scenario seems to be that one or more third parties - Europe, India, Japan, Saudi Arabia, etc. - offer(s) Iran a package of financial incentives and security assurances which convince Iran to end the war.

If only Muad'dib were here. He could find a way through.