As with every other policy, when it comes to the shape of a final deal between the P5+1 and Iran, there are a range of opinions in Israel.
Some believe that Iran should not be allowed to retain any capacity to enrich whatsoever. I disagree. As I mentioned in my recent interview with NPR:
“Look, every nation has got its own genetic memory, and the people of Iran have this genetic memory of their rights being disregarded and disrespected by foreigners. And if we tell the Iranian people you have no right to enrich, this is not going to be a sustainable deal.”
As mentioned in the article, I believe that “Israel should support and agreement that lets Iran continue to enrich controlled levels of uranium, something Netanyahu says is unacceptable”.
We are a long way from a final deal, and both Iran and the P5+1 have a lot to negotiate. Iran will first have to prove that its nuclear program is for civilian purposes only, something which the IAEA has not been able to declare after years of inspections.
Once we know this for sure, and Iran agree to close Fordo and the IR40 heavy water reactor (or change it to light water or enriched uranium), plus tough IAEA inspections, having a limited number of old generation centrifuges is not going to allow Iran to breakout to make nuclear weapons. Especially since a final deal will also mean that Iran will have to declare its centrifuge making centers and capabilities.
You can listen to the rest of the NPR report here