hello my friend, Have you ever heard of toledot/tolodoth
https://en.wikipedia.org/wiki/Toledot ? Why I'm asking is from your post if you noticed in Genesis 2:4
https://biblehub.com/interlinear/genesis/2-4.htm the word toldot (8435) which if Hebrew/Jewish as the disciples and our Lord are/were then if they ask in Matthew 24:3 "end of the aeon/age" then when Jesus said what he did about "this generation" he was directly answering their question(Matthew 24:3) and so he was stating that "one of the genneations of the heavens and earth(Genesis 2:4) was not going to end until all was fulfilled" (i.e. of the 7 days one day would not end and the next begin untill all were fulfilled.
Melach,,,
In this post I gave two links for a purpose in the wiki article in about the third paragraph the writers of the article use the term "FIRST READING" (which is incorrect) and easily proven from the other link I gave(Genesis 2:4, ,second word,#8435) in which the word "toldot" is first used in the bible we have.
The reason for this error is in the meaning of the word toldot or generation in that it is used only to mean generation as in western thinking and so generation only means 50's,60's 70's ect. or one age group to the next. Now in your OP you ask about the next millennial of time and what takes place in it.
So this then is from Revelation where the word millennial is used and so what is a millennial to a Hebrew thinking person and is it different from how it is used in the US or other peoples?
In a Hebrew manner of thinking the word toldot can mean a certain generation of a family or as in Genesis 2:4 it can denote a generation of time(aeon). So in Matthew 24:3
https://biblehub.com/interlinear/matthew/24-3.htm the disciples ask if you notice ask Jesus about an aeon of time(not genealogy see word #165) and Revelation uses the word millennial(1000 years) denoting time. So in Matthew 24:34 Jesus is answering the question they ask in Matt.24:3(time not genealogy). The Hebrew language does not have as many words in it and often times has multiple meanings of words.
In the Hebrew manner of keeping track of years this is the year 5779 but in our system it is 2019. So the Hebrews are counting off seven(7) millennial's because of Genesis 3:19 (six days/sweat of thy brow) and Exodus 34:21,Exodus 20:9-11 ect.
This is because of Isaiah 46:10 ( and others) in that "the end" was foretold by God "in the beginning"(so Genesis) and why from Genesis 1:1 to Genesis 2:4 were/are not considered as only a recollection of what took place but also "A PROPHECY" of seven complete millennial's of time.
Ierenaeus speaks of this in
http://www.newadvent.org/fathers/0103528.htm in the third paragraph and many of the early members of the Church(1st-3rd century) but then that fell away to other manners of thinking and is the reasoning behind some calculating events in eschatology as Amill, Preterit, Disp.ect. instead of six mill. days and the 7th is the rest from labor as in the Hebrew manner.
I am Christian by faith and always have been but have spoken of "Hebrew thinking" much in this post and thought it good to state that I am Christian to clarafy that to you. In speaking to a Hebrew if you say "it's cool" as in the slang used in the western world they would touch it to see just how hot or cold it was(means something different),,,, so look at what generation,aeon,toldot,millennial ect. means to a Hebrew(bible in your hand is from that perspective),lol