What the hell are you waiting for?
47 is waiting for the Chinese visit to be over, then for the mid-terms. If the GOP wins and wins big, then, if 47 is still interested and not totally bored with the whole Iran thing, then maybe, if there are enough munitions to finish to bombing campaign, Epic Fury could resume. But mostly likely, there will be another round of pointless "negations". The Mad Mullahs survive, therefore, they win again.
As for the Straits being opened and the uranium and plutonium extracted, don't hold your breath. Both require either the 12ers are overthrown by the Iranian people or US/Israeli troops on the ground to ensure both are accomplished. Chances of either happening are near Zero to None. The Mad Mullahs survive, therefore, they win again.
By the tine the "negotiations" are done, 47 will be almost out of office, and the can kicked down the road until the Iranians have working nukes and use them. At that point, "serious negotiations"will commence ... The Mad Mullahs survive or become martyrs, therefore, they win again.
No Western power has the political will to take them out. In fact since WWII ended, Western powers have suffered a deficit of political will to do more than perpetuate their own helplessness in the face of hard decisions; there is always some excuse or other.