John was the last apostle and the gifts ceased with him.
Paul said; “so that ye come behind in no gift; waiting for the revelation [apocalypse] of our Lord Jesus Christ; who shall also confirm you unto the end, that ye be unreproveable in the day of our Lord Jesus Christ.” (1 Corinthians 1:7) = a Revelation [apocalypse] before the final apocalypse. What is it? Notice we were to seek the gifts until the Revelation which would also confirm us until the end. It was not the end as everyone says. It was the Revelation that would confirm people UNTIL the end. = The book of Revelation.
“The Revelation [apocalypse] of Jesus Christ, which God gave him to show unto his servants, even the things which must shortly come to pass: and he sent and signified it by his angel unto his servant John;” (Revelation 1:1)
The revealing of Jesus Christ that I Corinthians deal His parousia described in chapter 15 when He deals with the resurrection.
They that are His will be made alive 'at His coming.' This word translation 'revelation' is used for the second coming. Compare to II Thes. 1:7. The Lord Jesus shall be revealed from heaven.
Your interpretation lacks the support of 'long thoughts' and themes running throughout the epistle. I posted an OP on this topic, the OP you referred to that at least hinted at this concept or dealt with it lightly.
Here in these verses at the opening of the book, Paul deals with themes that he will explore in detail later in the book. Let's take a look.
4 I thank my God always on your behalf, for the grace of God which is given you by Jesus Christ;
I Corinthians 1
5 That in every thing ye are enriched by him, in all utterance, and in all knowledge;
6 Even as the testimony of Christ was confirmed in you:
7 So that ye come behind in no gift; waiting for the coming of our Lord Jesus Christ:
8 Who shall also confirm you unto the end, that ye may be blameless in the day of our Lord Jesus Christ.
9 God is faithful, by whom ye were called unto the fellowship of his Son Jesus Christ our Lord.
He discusses enrichment in utterance and knowledge when he addresses spiritual gifts in chapter 12-14. He addresses the spiritual gifts in those chapters as well. Here, in verse 7, he says 'so that ye come behind in no spiritual gift, waiting for the coming of our Lord Jesus Christ.' Paul expands on this in chapter 15 when he refers to the events that will transpire at the Lord's 'revealing' referred to in this verse and also in II Thes. 1:7. He describes the resurrection and speaks of 'they that are His at His coming.'
Verse 8 refers to the 'end.' Look that word up in I Corinthians 15:24, where, after discussing the resurrection, he says 'then cometh the end.' That is when Christ delivers up the kingdom to God.
I Corinthians 13 into the theme Paul lays out here in chapter 1 and ties into chapter 15. Paul experiences the perfect at the resurrection. We see this also in Philippians 3.
11 If by any means
I might attain unto the resurrection of the dead.
12 Not as though I had already attained, either were already
perfect: but I follow after, if that I may apprehend that for which also I am apprehended of Christ Jesus.
Paul describes his own state at the coming of the perfect in I Corinthians 13. When he wrote I Corinthians, he thought, spoke, and understood as a child. But after the perfect comes he will know fully. 'That which is in part' shall be done away. Paul knew in part, he said. But knowledge will not be done away with. In-part-ness will be done away with. Paul's partial knowledge will be replaced with comlete knowledge when the perfect comes.
In Philippians 3, above, Paul describes this as himself also being made perfect-- something that had not happen yet. But he will experience it at the resurrection of the dead. I Corinthians 13 gives us more details about how this will effect him and us.
We should interpret the passage consistent with.
1. The themes in the book.
2. The themes in Paul's writings.
And not just plug in some concept like 'the completed canon' which has no support from the text, merely because it fits with ones preconcieved ideas.