Has diplomacy got any hope of stopping renewed war in Iran?

As the threats of renewed war increase from Washington and Tel Aviv, there's a huge effort from regional leaders to find a diplomatic formula. Could it work? Pakistan, Saudi Arabia and Turkey have all sent their top guys to Tehran to see if there is any hope of concessions from the Iranian regime to stop war breaking out again. War would be grievously damaging for the whole Gulf region because of Tehran's declaration that if the US and Israel attack, the response will be much worse than it was during the first round of bombings. The evidence of that is still being evaluated. But masses of US military sites and energy plants in Gulf states were targeted by Iranian drones and missiles. Saudi Arabia, in particular, had and is having the toughest of times, having been hit on numerous occasions and now also by the Houthis from Yemen. Can these diplomatic envoys make any difference? Well, one of the required concessions is for Iran to stop enriching uranium and to hand over the 60 per cent-enriched uranium buried underground under the Natanz and Isfahan nuke sites. The boss of Iran's supreme national security council, the hard-looking Mohsen Rezaei, has made it clear that not one ounce of that enriched uranium will ever leave the territory of Iran. So, no sign of concession there. It doesn't necessarily mean diplomacy is dead, but unless something is worked out soon, Trump and Netanyahu are going to go back to war with all the unpredictable consequences for the whole region and the world.