I’m not sure we’ll see Iranian nuclear weapons in the immediate future. It is a surprisingly long step from having a nuclear bomb to having a deliverable nuclear warhead. Having a Paki bomb show up is more likely.
That's a good possibility, but who's to say that Iran isn't using a Paki bomb to guide them in how to build their own? I'd be highly surprised to learn that this isn't the case. Either way, I'd say that unconventional warfare of all kinds is definitely on the table if this one goes hot.