I saw this post by (Yeranen) Ya'akov. I think it was written with Ruach HaKodesh, and I would like to polish it a bit, in my way.
The period between the first and second Churban was 70 Shmitot, a repeat of the 70 Shmitot that were not kept before the first Churban. Thus, it seems proper to say that, in Yeranen Ya'akov's Shita, Sepher Daniel's half Moed is 70 Shmitot, which, after all, is also a concept of Sepher Daniel.
Note that the announcement of the crushing of Avraham's sons in exile, at the Brit Bein HaBetarim, was 70 years after Avraham's birth.
The crushing of Avraham's sons actually started right after Aharon was born, which was 417 years after the birth of Avraham. Moshe was born 420 years after the birth of Avraham. Note the appearance of the same numbers, 417 and 420, in this post.
The first Churban was 139 times seven years after the birth of Aharon. If 70 times 7 is half a Moed, 139 times 7 can be called a Moed. As 139 is one third of 417, it appears that the 417 years until Aharon reflect Daniel's three Moadim, just as the 70 years until Brit Bein HaBetarim reflect half a Moed.
After the half Moed had ended, the second Churban was in year 3829 in our year count (3828 in the count of the Tanna), and two times 139 Shmitot later will be Shmita year 5775. That, then, is the end of the crushing of Jews in exile.
After that comes the first Shmita of Yovel פ"ה.
Finally, the Gematria of "בשנה האחרת" is still saying what is a Moed. If Kollelim are included for the two words, one obtains 973 - 139 times 7.