Nope. The rules are eternal whether they are written or not.
Whether they are on earth is irrelevant.
Whether they are written is irrelevant.
Whether they are known is irrelevant.
They are eternal because God is literally and absolutely infinite.
Do all animals have to follow these rules too? Think about it.
Humans are created in God's image fine. Do Angels follow the same rules? Michael means like God.
So rules are made for our benefit. Some rules are in tune with the light of God and need no revelation.
Some rules are rituals. Rituals are particular with the scripture. They are complimented by the scripture and make people understand inward signs with outward behavior as a reminder.
For example, Ruku and Sujood are highly complimentary of how God has related the titles "ali" "atheem" with himself, to God's chosen, and to believers honor. The mention of "Lord of the highest" in Salah in sujood, is particular to Surah Taha and what was said to Musa (a) "You are the highest". None of these rituals are in a vacuum. "Lord of Haroun and Musa" "Lord of Musa and Haroun" (Twice) all compliment it too and give it life and meaning.
The Salawat on the family of Mohammad (S) in Salah for example - the two Ahlulbayt verses in Quran compliment it. Rituals are not revealed in a vacuum but are particular to the revelation. The revelation is particular to the situation of the people.
The only thing with Quran and Sunnah, I believe it's from Mohammad (s) until the world ends. However, hadiths show Imam Mahdi (a) will judge regarding things Quran and Sunnah had no explicit mention. For example, healthcare didn't exist during time of Mohamad (s) as medicine was not that advanced in those times.