This has nothing to do with nukes. Claims of Irani nukes go as far back as 1995.. 1995.. 30 years ago!I think the most realistic thing iran can do is settle for a deal to end this war for now (if they can)
Iran will never acquire a nuclear bomb in this global landscape. US and Israel will simply never allow this to happen
They should wait patiently until the global dynamic shifts which I don't this is very far off from now

It's a fabricated casus belli, similar to CIA attempts in 2011 Pakistan that militants might get hold of Pakistani nukes.