It is my Christian opinion because unless GOD was just being highly extravagant creating the whole absolutely huge universe for no reason then HE made it to be our playground once we have our resurrected bodies and can travel and communicate over vast distances like the angels do now...
His kingdom is among us or in the midst of us or inside us, ie, an emotional rather than legal connection, which inclined me to accept the concept that the heavenly marriage of
Revelation 19:6-8 must have an emotional fulfillment of loving communion, communication and fellowship based upon love:
Ephesians 5:25 “Husbands, love your wives” and
Titus 2:4 “teach the young women … to love their husbands”. not of legal papers etc. Putting the kingdom within together with the marriage of true love and you get the relationship of all the Church members with GOD as the basis for both.
Since the place of heaven is, will be, wherever the people in the heavenly marriage are, and the place of the kingdom will be wherever the people of the kingdom are, then any specific place in this huge universe is irrelevant and the emotional connection of of marriage in the kingdom is all.