Did the Apostle Paul receive new revelation from the Lord?
Yes, Paul received new information directly from the Lord Jesus Christ.
Galatians 1:11-12 But I certify you, brethren, that the gospel which was preached of me is not after man.  For I neither received it of man, neither was I taught it, but by the revelation of Jesus Christ. (KJV)
The fact that Paul received this information directly from the Lord Jesus Christ demands our attention and respect. If the distinct Pauline information was of mans invention, we could safely ignore it, but since it came directly from the Lord Jesus Christ, we had better pay attention to it. Did anyone know about this information before it was given to the Apostle Paul? No. The information given to Paul was a mystery hidden by God until He decided to reveal it through the Apostle Paul. Scripture describes the information that was given to Paul as a dispensation.
Col. 1:25-26 Whereof I am made a minister, according to the dispensation of God which is given to me for you, to fulfil the word of God;  Even the mystery which hath been hid from ages and from generations, but now is made manifest to his saints: (KJV)
Romans 16:25 Now to him that is of power to stablish you according to my gospel, and the preaching of Jesus Christ, according to the revelation of the mystery, which was kept secret since the world began, (KJV)