When is this exciting Japanese Nationals?
Dec.25th to 27th, JST.
The criteria of JSF in sending skaters to Olympics and Worlds:
1. the skater reaching the highest among the Japanese on the GPF podium (not off the podium) of each discipline, this under the condition that the skater competes in the Nationals.
<Miki and Nobu already locked, unless they pull pull out of Nats>
2. the winner of the Japanese Nationals.
<If Miki and/or Nobu wins the Nats, it will be criterion #3 below applied to the 2nd place finisher, no automatic slot for him/her.>
3. selected from
(A) the podium finishers at Nationals,
(B) GP Finalists, and
(C) the top three Japanese ISU rankers at the time of Nationals;
determined under thorough considerations.
It says this criterion "3" in particular is primarily for Oly Games and that the slot(s) for the Worlds determined by this "3" might differ from the Olys, which is to give chances to runner ups.
Akiko Suzuki already satisfies 3(B) and 3(C) so she is at the moment the closest to the Oly games aside from Miki in this system, literal-wise.
But of course Mao who satisfies 3(C) and who happens to have a god chance for the automatic criterion "2" is the strongest bet among those chasing the 2 slots left for the Japanese ladies.
ETA:
If Miki/Nobu wins Nats, the other 2 ladies/men sent to Worlds will possibly be different from those sent to Olys, especially the ladies.