No, everything that's ever been said, that ever needed to be said is contained in those 66 books collectively known as the Holy Bible. Nothing else is needed; all the necessary knowledge, ethics, morality, science, philosophy, art, expression- everything pertaining to existence is contained between its inerrant pages.If that were the case then I would imagine he would still be communicating to the select prophets amongst us, who then should be adding God's thoughts to the Bible. The world is everchanging and I am sure that God should have something more to say to us by now.