the heavens shall pass away with a great noise, and the elements shall melt with fervent heat, the earth also and the works that are therein shall be burned up. - 2 Peter 3: 10
Paul,
The WT is certainly not unique in picking and choosing which verses they take as literal and which verses they wave away as symbolic because they don't like what it says. The church has been plagued with this kind of nonsense from very early on.
The bible teaches that there will be a literal paradise earth (people will still have the sin nature though) under the kingdom reign of Jesus Christ, and after that the universe will be rolled up like a scroll and re-created, completely unblemished by sin and rebellion.
Many billions of people who want to live with God will get to be eyewitnesses of this re-creation event.... with front row seats. It will be awesome.