God has not changed His mind about His creation. God loves His creation, which includes the universe, the earth and everything in it, and mankind. The Bible tells us, in the best known verse (John 3:16), that God loves His creation so very much that He sent His only Son to die for it. Adam's sin made it necessary for all of mankind to need to pay a penalty for sin, and that penalty is death. But, Jesus paid that penalty for us, as a gift to us. And, like any gift, it cannot be ours unless we accept it from the giver.
So.....all any man or woman needs to do to avoid the penalty (death and Hell) is accept Jesus as his/her Savior.
Much of God's Creation has not accepted this Gift, so I suppose that you could say, as your question says, God's Creation has changed its mind. Most people on Earth have decided to not accept Jesus as their Savior.