LMsA: If I were Iran I’d be running to Trump right now and begging for a deal.
It looks like they've been doing that almost from the beginning. Trump has made the terms pretty clear: abandon all nuke development. I think he is also inclined to let Israel do whatever it can to help overthrow the Iranian government. The pressing question remains whether the US will take any direct action, and what that will lead to.
As for Israel, they must see this as a very rare --and perhaps their only-- opportunity to reshape the Mideast more to their liking. Trump hasn't just given them the green light to act, he's moving ships and planes to the area and making loud noises on social media. I figure he is doing this to warn off anyone else from interfering until Israel gets what it wants.