God will recreate our bodies at the end of history, since He created us as body-soul creatures. We were never meant to be pure spirits, like the angels. For man, death is a result of sin.
God will also transform creation in some way to bring about the New Heavens and New Earth (Revelation 21:1-4) Scripture speaks of.
Some speculation is that the saved will have their bodies back at their perfect prime, and then they will be glorified in the fashion Jesus' body was at the Transfiguration . . . and, as the book of Revelation tells us, there will be no more death, mourning, wailing or pain, for the old order will have passed away (Revelation 21:4); and a new incorruptible order will commence.