change means an act or process through which something becomes different (no matter how small) and the status of Quran is also going to change one day
From ‘Abd-Allaah ibn Mas’ood, who said: “Something will come and take the Qur’aan one night and not one aayah will be left, either in the Mus-haf or in the heart of any person, but it will be taken away.” (Narrated by al-Daarimi with a saheeh isnaad, no. 3209)
Al-Daarimi narrated with a different saheeh isnaad (no. 3207) that ‘Abd-Allaah ibn Mas’ood said: “Recite the Qur’aan much before it is taken away.” They said, “These Mus-hafs will be taken away! What about that which is (memorized) in men’s hearts?” He said: “Something will come and take it one night, and in the morning they will wake up without it. They will forget the phrase ‘laa ilaaha ill-Allaah’ and they will start to recite the sayings and poetry of the Jaahiliyyah. That is when the Word will be fulfilled against them.”
so again mate only thing constant is change in this universe.