I think the price can only increase. There is not much competition for Hormuz. If it is exorbitant now, it can only be more expensive later on. The demand for oil is not going to go down drastically for quite a few years.
If there was another route, the oil would have found the way.
pipelines, railway, etc.
had the US had any real plan to empower the Gulf states against Iran there would already be backup routes
In time pipelines can be made, no? 2 million per ship already gives a lot of room for exorbitant infrastructure projects to break even in the medium term
There are already pipelines in the region.