Heaven as it will be at the end of time when all the blessed souls receive their glorified bodies.
“And I saw the holy city, new Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband; and I heard a loud voice from the throne saying, ‘Behold, the dwelling of God is with men. He will dwell with them, and they shall be his people, and God himself will be with them; he will wipe away every tear from their eyes, and death shall be no more, neither shall there be mourning nor crying nor pain any more, for the former things have passed away’” Rev 21:2–4.
§ 865 The Church is ultimately one, holy, catholic, and apostolic in her deepest and ultimate identity, because it is in her that the Kingdom of heaven, the Reign of God, already exists and will be fulfilled at the end of time. The kingdom has come in the person of Christ and grows mysteriously in the hearts of those incorporated into him, until its full eschatological manifestation. Then all those he has redeemed and made holy and blameless before him in love, will be gathered together as the one People of God, the Bride of the Lamb, the holy city Jerusalem coming down out of heaven from God, having the glory of God. For the wall of the city had twelve foundations, and on them the twelve names of the twelve apostles of the Lamb.