Readers who are interested in this subject should be sure to visit this site and download the paper entitled, "A Positive Case for the Continuation of Familial Structures into the Eschatological Age."
The paper is written from an evangelical and premilennial perspective, but is helpful for those of us who have other ecclesial commitments and eschatological perspectives. The paper has a fine discussion of Christ's teaching refuting the Saducees' objection to the Resurrection (Matt. 22:23-32; Mk. 12:18-27; Lk. 20:27-38).
Whether familial structures *might* persist into the eternal state is an important question that bears upon questions of continuity between the old and new creations, the supposed temporal value of marriage and family, and even--monarchy.
For instance, does Mary the mother of Jesus retain a maternal connection with her son? Is Jesus still the son of David? Is Jesus ethnically Jewish? Is Jesus presently reigning as King of Israel?
You see the point.