Another thought to keep in mind here concerning the curse of the whole creation, Jesus Christ came as a man to die for the sins of men. His substitutionary death redeems sinful men, not klingons or any creatures from the planet zorb. Since He died once there is no sacrifice and therefore no salvation for those beings. When the existing creation is replaced with the new heavens and earth, those creatures get destroyed for no fault of theirs. That would make God unjust, something He cannot be. Shalom