The "Gap" theorist would say this creates tension between what is said in this verse:
Isa 45:18 For thus saith the LORD that created the heavens; God himself that formed the earth and made it; he hath established it, he created it not in vain, he formed it to be inhabited: I am the LORD; and there is none else. (KJV)
Isa 45:18 For thus saith Jehovah that created the heavens, the God that formed the earth and made it, that established it and created it not a waste, that formed it to be inhabited: I am Jehovah; and there is none else. (ASV)
And the condition described here:
Gen 1:2 And the earth was without form, and void; and darkness was upon the face of the deep. And the Spirit of God moved upon the face of the waters. (KJV)
Gen 1:2 And the earth was waste and void; and darkness was upon the face of the deep: and the Spirit of God moved upon the face of the waters. (ASV)
Additionally, they claim that the "Morning Star" - Lucifer, Satan, Devil, that Old Dragon - was first to bring sin into creation and thus, the sin curse upon all creation. There is no doubt in Scripture, that the fall of Satan and his followers predated the fall of Adam. This marred the original beauty of God's creation and that of the Earth when the Devil was cast down upon it. This necessitated, at a later date, the Earth having to be remade or reformed.
Therefore, they claim that having Gen. 1:2, as the original creation, places the fall of Satan after the Earth was created for man. This would mean that Adam was placed into the garden, upon a sin cursed environment or that Satan was cast from Heaven after Adam was formed. This would then place Adam and Eve in the Garden for some extended period of time; however, Scripture seems to imply the period of time was very short.
So then, they claim that Satan fell after the original creation of Gen. 1:1 and God restored the Earth for mankind in six literal days. However, the fallen Satan was upon the Earth when God reformed it for Adam. Awaiting the opportunity to cause havoc upon this newly formed creature. Therefore, sin entered into Creation through Lucifer, (Devil), but entered into the world, (mankind), through Adam. If Death was the penalty for Adam's sin, then what penalty was there for Lucifer's sin? How did both sins effect creation overall?
The Earth was cursed for Adam's sake - which part of creation was cursed for Lucifer's sake?
Now we see the original question is not so simple after all.