OK, I have done some further reading and both see some merit and flaws in your approach.
First, I think there is possibly some great value in this approach to Matthew, from the context of thinking about a Nazarene (Egypto-Persian prince living in his 'Aramaic' speaking kingdom, his father in Urfa>Edessa) master providing his disciples various wisdom sayings. Later, after his Roman cousins (from the Abrahamic tree) make off with his Abrahamic inheritance, the Romans, in collusion with the Maccabean Josephus, use the original Matthew as a template to add their esoteric system onto, while they also provide the parallel bolstering canonic gospels and the Pauline corpus. This allows for the 4 gospels to be worked on simultaneously, interwoven as described by Atwill with the works of Josephus. So, they have literally grafted themselves (Romans 11) onto the Root of Jesse and textually as well.
So great job there.
However, what you have provided demonstrates that your Son of Man, is representing himself not as a mere man, as you suggest, but as a kind of pope or leader of a secret, esoteric cult. One that, indeed, is intimately familiar with the concept of precession of the equinoxes, via the references to this age and the next.
Thus the religio-social construction that you suggest does seem more akin to what is known of the later Cathars and their predecessors, likely linking back to the gnostic Naasenes.
As I have alluded to prior, we are now becoming aware that this process was recapitulated with the Tudor tableau in England. However, it would appear to me that for some reason they jumped the chiliastic gun, as did the Roman Church with the Sistine Chapel meant to replicate the Jerusalem Temple.
As you know, the first Third Temple was razed to the ground during the Second Coming (by Christos Titus) 'exactly' during the time of the canonic generation of the disciples. At the next chili cook-off the Normans had their Doomsday conquest, placing their lords over the cities of England like the Levites were placed over the 48 cities of Israel. And now everyone is all excited about 2030, which will be but one generation removed from 1,000 years since that prior chili cook-off. But, they need time for the second Third Temple to be built.
Do not put figs into the chili.