Ah are you a full preterist? I have a question for you:
Why didn't the resurrection occur? The destruction of the current earth is connected to the return of Jesus which is connected to the resurrection. Even if we symbolize the earth and heaven, we cannot symbolize the resurrection because we know from the Gospels that the resurrection of Jesus was a genuine real event.
This is how I see it- Jesus being the resurrection.
Ephesians 2:4-6 But God, who is rich in mercy, because of His great love with which He loved us, 5 even when we were dead in trespasses, made us alive together with Christ (by grace you have been saved), 6 and raised us up together, and made us sit together in the heavenly places in Christ Jesus,
even when we were dead in our transgressions, made us alive together with Christ (by grace you have been saved), Ephesians 2:5
We have eternal life and can never die spiritually. At death our bodies go to dust, and we go immediately to heaven:
Jesus said to her, "I am the resurrection and the life; he who believes in Me will live even if he dies, and everyone who lives and believes in Me will never die. Do you believe this?" John 11:25-26
Jesus is saying, "He who believes in me shall live [spiritually], even if he dies [physically], and everyone who lives [physically], and believes in Me, shall never die [spiritually]."
Two categories of believers are discussed: those who would die before the resurrection, and those who would not. For those who died under the Old Covenant, He was The Resurrection, but for those who lived into the days of the New Covenant, He is the Life.
In the old covenant, a saint that died was said to have fallen asleep. In the new covenant we will not fall asleep. The reason Paul said "we will not all sleep" is it's for the saints of the promised resurrection. When Paul wrote this, the old covenant was still in place. It had not passed away yet. When Heaven and Earth (Israel and the old covenant) finally passed away, there would be no more falling asleep.
The Resurrection was for the saints of the Old Covenant and not those after 70 AD in the New Covenant. Jesus even said we will pass over from death to life. He did not say we would be resurrected.
John 5:24-25 "Truly, truly, I say to you, he who hears My word, and believes Him who sent Me, has eternal life, and does not come into judgment, but has passed out of death into life. 25 Truly, truly, I say to you, an hour is coming and now is, when the dead will hear the voice of the Son of God, and those who hear will live.
Ya see, Jesus was speaking of a "now" not a future resurrection. That is why at the resurrection of Jesus, the saints who had fallen Asleep were raised to life. (Matthew 27:51-53)
Under the New Covenant, there is no death, spiritually speaking. Where there is no death, there is no need of a resurrection. We have eternal life and can never die spiritually. Therefore, we don't need a resurrection. At death, we go immediately to heaven.