It's far too soon to tell. But the omens are good:
The head of the UN nuclear agency, Yukiya Amano, has said an agreement would be signed "quite soon" with Iran to allow an investigation into claims it had tried to develop nuclear weapons.
And, whatever they bluster in public, the Israelis are getting saner:
Though Israel has been expressing zero flexibility regarding a possible deal with Iran, Defense Minister Ehud Barak a few weeks ago issued a written statement that Israel would consent to Iran's continuing enrichment of uranium to a low level of 3.5 percent, as well as to allowing a few hundred kilograms of 3.5-percent enriched uranium to remain in that country.