We can never be sure about Iran nuclear infra being bombed . None of the sources would be accurate enough especially given the fact that Iran has been at logger heads with Israel and the west for a long time . May be the Israelis got a few bits and pieces ,but I am 100% sure they are not sitting ducks nor are they idiots . Iranians are intelligent and many jews from Iran are the current Israelis apart from Jews in other countries like Russia who migrated to Israel .It's a collateral damage for these nations those imported horde of migrants from ME & African region. USA created ME crisis, jasmine revolution, etc. which destabilized that entire region, EU played along to cool Obama at that time. Now, if EU antagonize their own migrant population EU will face internal strife. USA's inferiority complex is actually with EU and this is how it's being taken care off.
It's already taking place, with Iran's major nuclear infra being bombed to oblivion without nothing much to stop Israel.
Parsis were pushed out of that region and found safe-heaven in India, so nothing much to like on that aspect.
Once current Iranian regime is out, cheap oil will anyways be available.
Only problem may be humanitarian crisis in one of the ancient civilization regions of the world, the country will implode and create more issues to the world. Other one is, what if secret cabal of Iranians already have a dirty nuclear bomb ready and it's used. https://www.bbc.com/news/articles/c056zqn6vvyo
This war will clearly have no winner is what I feel is the eventual outcome .