I assume you're talking about the new heavens and new earth here.
Yes.
Do you believe that any natural human men are in His kingdom during that time?
I believe Christ Jesus’ mellinnial Kingdom is Occupied by Jesus, Saints (already bodily glorified), holy angels…not human men.
Where do either Peter or Paul indicate that the destruction they describe occurs over a 7 year period of time or over any period of time involving multiple years or even multiple days?
Seven is a Time frame…and Time was established for mankind.
Seven is a repetitive number From an intent of a specific prophecy To the fulfillment of a specific prophecy.
The first Earths Destruction (by God)was by Water. The Saved (were few), and “through the door” for SEVEN Days Before the Earths Destruction Began.
Gen 7:
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4] For yet seven days, and I will cause it to rain upon the earth forty days and forty nights; and every living substance that I have made will I destroy from off the face of the earth.
Gen 7:
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10] And it came to pass after seven days, that the waters of the flood were upon the earth.
Gen 7
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16] And they that went in, went in male and female of all flesh, as God had commanded him: and the LORD shut him in.
The next (and last) Earths Destruction (by God) will be by Fire. The Saved (few comparatively to present population), and “through the door” for SEVEN Years Before the Earths Destruction Begins.
John 10:
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7] Then said Jesus unto them again, Verily, verily, I say unto you, I am the door of the sheep.
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8] All that ever came before me are thieves and robbers: but the sheep did not hear them.
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9] I am the door: by me if any man enter in, he shall be saved, and shall go in and out, and find pasture.
Both Peter and Paul describe the destruction as occurring upon the arrival of the day of the Lord as a thief in the night. So, where do you get the idea that fire is destroying the heavens and the earth for 7 years?
Rev 11:
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2] But the court which is without the temple leave out, and measure it not; for it is given unto the Gentiles: and the holy city shall they tread under foot forty and two months.
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3] And I will give power unto my two witnesses, and they shall prophesy a thousand two hundred and threescore days, clothed in sackcloth.
Rev 13
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5] And there was given unto him a mouth speaking great things and blasphemies; and power was given unto him to continue
forty and two months.
Where is that indicated in either 1 Thess 5:2-3 or 2 Peter 3:10-12? Each passage describes the destruction as occurring immediately upon the arrival of the day of the Lord that comes unexpectedly like a thief in the night. Why are you postponing that destruction for 7 years after the day of the Lord first arrives? Paul said the destruction that will occur when the day of the Lord arrives as a thief in the night will be sudden and he indicated that it will be total destruction because he said "they shall not escape". There's nothing sudden about claiming that the total destruction doesn't occur until 7 years after the day of the Lord arrives unexpectedly.
Earthquakes Occurring causes destruction!
Buildings toppling causes destruction!
A forrest burning causes destruction!
Lightening hitting here and there causes destruction!
High Winds Causes Destruction
These things occur now, here and there.
Such thing shall INCREASE here and there in Severity during a seven year time period.
Total Destruction Is caused by the Power of God reigning DOWN FIRE upon the entire Earth.