Not the end of the world for Iran.
I think if US is done with that. Then better for Iran.
I thought US was planning for intense air campaign at various Iranians cities, hitting industrial centers or any industry / factory that contributes to Iranian Ballistic missile program. Because Israel had 2 objectives:
1) Iran's BM program (2) Iran's nuclear program.
So, if US is not moving forward to destroy Iranian BM program then its good and If US really wants "peace" after this strike then give it to them and prepare silently for vengeance when you will be ready.
Nuclear program is gone. Iran itself didn't wanted it. So.. what's gone is gone. Now Iran should focus on its BM program. Shift production towards eastern borders and build better, faster missiles. More advance cluster munitions, supersonic cruise missiles etc.
BTW, even if Iran would have made nuclear weapon, that would be a deterrence against Israel NOT against USA until you have had built the ICBMs. Pakistan is a nuclear power but still US can twist our arm anytime because our deterrence is only regional, we don't have global delivery system. No ICBMs, no nuclear subs. Anyways, Iran can keep firing missiles at Israel, who is the main architect of this whole episode. But whenever this war is over, Iran should silently built its air defense, airforce and enhance its BM capabilities.