It looks to me like different parties within Iran are saying and wanting completely different things. Which means that if an agreement is signed at this point it will probably be worthless.
Any agreement with any Muslim country is worthless. Their own unholy book tells them the only time you can negotiate a peace treaty is when you are defeated. It then says they are only bound to keep the treaty until they are strong enough to attack again, and then they are instructed to attack and kill all infidels when they have recovered strength. They will never keep a peace agreement.
Their book also instructs them on how to lie to advance their cause. There whole belief system is built on lies, and the Bible tells us who the father of lies is.
They are commanded to create chaos to bring their messiah, the mahdi, to subdue the earth. Religion of peace? No, religion of the antichrist.
Working in law enforcement i liked to know what my adversaries believe, so i read their books. If you can stomach reading a quran and surah, you can learn a lot about muslims.
After having read their books and the Nation of Islam books by Farrakhan, I am convinced their god is the god of this world.
After having studied the Bible and Bible Prophecy, I believe they are the large part of the coming one world religion. Especially when the last couple of popes and so called christian churches have embraced the all religions lead to God and heaven heresy.
There is but One path to heaven, and that is through Salvation by Faith in Jesus Christ the only Son of God, born of a virgin, died on a cross, buried in a tomb, and arose from the dead 3 days later! Amen