I rather assume the plan is that Iran should be pushed into a retaliation which will provide a reason for a major attack on Iran either by Israel or the USA or both. Trump getting his own back on Biden by landing him with a very nasty situation, and closing down hopes of getting a fresh peace deal with Iran.

It's only too likely that Trump is setting in motion his Heritage War. If Iran holds off on falling into the trap I suspect there are more terrorist acts against Iran in store from Israel/Trumpland, ready to rolled out in the dying days of this regime.

I gather a sizeable US Navy force has just been deployed in the Persian Gulf.

I think this could be about the most potentially disastrous scenario since the Cuban Missile Crisis. When none of the leaders involved were actually off their heads, which you can't say today with any confidence.