IMO, Peter deals with this in I Peter 3:18-4:6. After His death Jesus simply delivers the captives in Abraham‘s Bosom, Luke 16:19-31. Paul speaks of this in Ephesians 4:8 quoting Psalms 68:18 after Jesus rose from the dead He brought with Him those in Abraham’s bosom. I believe their bodies were just temporary but as stated by the Apostle Paul they are eternally with God in their spirit, II Corinthians 5:6-8; Philippians 1:23. But the New Body is created after Christ and if I understand Philippians 3:21 when compare to I Corinthians 15:27-28 and I John 3:1-3 we all shall be changed at Christ 2nd Coming. Paul seems to state this in I Corinthians 15:51-57.