Blessed Irenaeus says: "Neither the structure nor the substance of creation is destroyed or annihilated, for He who fashioned it is faithful and true. But the form of this world passes away, that is, the form in which transgression took place. For in this man grew old, and therefore, according to the divine foreknowledge of all things, this form also was only for a time."
The great Methodius says the following about this in his discourse on the resurrection: "The opinion of some cannot be accepted, that everything will perish to its foundations and that there will be neither earth, nor heaven, nor air. For although the whole world will be set aflame by fire for its purification, it will not reach final perdition and annihilation."
And further he continues: "Paul clearly bears witness, saying: 'The earnest expectation of creation eagerly waits for the revelation of the sons of God. For creation was subjected to vanity, not willingly, but because of Him who subjected it, in hope that creation itself also will be freed from bondage to corruption,' and so forth (Rom 8:19-21).
And before this holy David, singing to the Lord, said: 'Thou shalt send forth Thy Spirit, and they shall be created, and Thou shalt renew the face of the earth' (Ps 103:30).
And Isaiah says: 'There will be a new heaven and a new earth, and the former things shall not be remembered, nor come into their heart, but they shall find joy and gladness in it' (Isa 65:17-18).
And it is true that, in the overflowing of endless joy because of the multitude of rewards, they will forget the sufferings, struggles, and pains that accompanied their contests.
He also says elsewhere: 'As the new heaven and the new earth which I make shall remain before Me, so shall your seed and your name stand' (Isa 66:22)."
Therefore the creation that existed for our sake will be changed for the better together with us. It will not pass after death into nonbeing, just as we shall not.