Paul Copan, in answering a skeptic's issues with the biblical account of the Fall on the Unbelievable podcast, discussed how creation was called "good" by God, but that doesn't mean it was perfect. That doesn't mean there wasn't death of both animals and humans. It doesn't mean that was the end all of existence. In fact, Paul quotes N.T. Wright as teaching that if Adam died, he would have gone to Paradise like everybody else.
But is all of that true? What does the Bible mean when it uses the word "good?" What are the thoological ramifications of death before the Fall? How then can Revelation use "Edenic" language to refer to heaven?