Ah, good one! Yes, I agree that it's about the rapture. And, obviously this was taught well before 1st Corinthians was written. In keeping my promise not to argue about this, I will just say that we have to consider whether this is talking about us being brought to heaven or Jesus bringing heaven to us (new heaven = heaven brought to us). I'll say no more unless you decide that you want to discuss it more.
I believe it is taking the church to heaven. It talaks of Him going and coming and receiving us to Himself.
Also in Rev. 19 we see the marriage of the church to Jesus take place in heaven before He returns.
19 And after these things I heard a great voice of much people in heaven, saying, Alleluia; Salvation, and glory, and honour, and power, unto the Lord our God:
2 For true and righteous are his judgments: for he hath judged the great whore, which did corrupt the earth with her fornication, and hath avenged the blood of his servants at her hand.
3 And again they said, Alleluia And her smoke rose up for ever and ever.
4 And the four and twenty elders and the four beasts fell down and worshipped God that sat on the throne, saying, Amen; Alleluia.
5 And a voice came out of the throne, saying, Praise our God, all ye his servants, and ye that fear him, both small and great.
6 And I heard as it were the voice of a great multitude, and as the voice of many waters, and as the voice of mighty thunderings, saying, Alleluia: for the Lord God omnipotent reigneth.
7 Let us be glad and rejoice, and give honour to him: for the marriage of the Lamb is come, and his wife hath made herself ready.
8 And to her was granted that she should be arrayed in fine linen, clean and white: for the fine linen is the righteousness of saints.
Then we return with Jesus to earth for teh marriage supper which could last the entire Millenium.
This follows perfectly with the Jewish wedding system.