It could also all occur some September around Tishri or in a manner that reminds of us the Hebrew festivals and holy days....just as you claim! Not closed to the idea of it...but in the end only the Father knows!
The Father’s prophets have clearly stated that it is Tishri 1, and they are not “Hebrew Festivals,” but YHVH’s Appointed Times.
Literally all of his events occur on his appointed times, from the beginning to the end.