They will be resurrected prior to the Great White Throne Judgment.
John 5:25-29 esv
25 “Truly, truly, I say to you, an hour is coming, and is now here, when the dead will hear the voice of the Son of God, and those who hear will live. 26 For as the Father has life in himself, so he has granted the Son also to have life in himself. 27 And he has given him authority to execute judgment, because he is the Son of Man. 28 Do not marvel at this, for an hour is coming when all who are in the tombs will hear his voice 29 and come out, those who have done good to the resurrection of life, and those who have done evil to the resurrection of judgment.
Remember, the "dead" are those who were NOT in Christ and who were in the Lake of Fire, aka "Hell". They were there to be corrected and restored. As this verse says, they will be resurrected and judged. Thereafter, I believe, they will be forgiven.
I believe the Great White Throne judgment will be a celebration. ALL will witness Jesus destroy death by throwing it into the "Lake of Fire" and no more souls will go there because all will be pure, or so I believe.