From my perspective and based on his recent media appearances...I'd say look for something around late May. And we'll all read about it many hours after the fact.
I’d say late April, although taking delivery on those bunker busters sounds like misdirection. Israel will rub out Hizbollah’s buried bunkers with relatively few shots — once those buried Iranian missiles start to detonate, they won’t stop until 99 percent of them have blown. It’ll be a new kind of “trench warfare”. ;’)
We’ll know more if there’s reports of unexpected spottings of Israeli aircraft, such as flying east to west and back over the Med.