Of course, such an attack does not make any sense by itself, it will delay Iran's operations by a couple of years perhaps (which they are being delayed now anyhow due to IAEA watching), but buy Israel an eternal suicidal enemy. But I assume that what convinces Netanyahu most is his own political survival. So my expectation is that there will be no attack on Iran before the next Israeli elections.
Three killed after car bomb explodes in Sana'a, Yemen (Reuters)
from the article: Netanyahu: A nuclear Iran poses a serious, direct threat to Israel