Is God waiting on us before saving Israel? Romans 11:25 (NIV)

says, “I do not want you to be ignorant of this mystery, brothers, so that you may not be conceited: Israel has experienced a hardening in part until the full number of the Gentiles has come in.”
In today’s reading I was again startled by the apostle Paul’s words concerning the “full number” of the Gentiles that God wants to save. We are living in the age of the Gentiles’ salvation. When God has saved whom He wills, then He will turn His attention back to the Jews. When that happens Israel will embrace Jesus as Messiah.
I wonder if we are living in the age when God will soften the hearts of Israel?