Based on the preference, selection order and selection option of the world's top 6 skaters I think we may see:
SA: Nathan/Boyang
SC: Yuzu/Mika
IdF: Vincent/Shoma
CoC: Vincent/Boyang
RC: Yuzu/Mika
NHK: Nathan/Shoma
Nathan chooses first, from last season's selection he'd take the first and last stops to meet his school schedule. NHK probably would not reject his request.
Yuzu 2nd, he would like SC for convenience. He won't choose IdF cause it's back-to-back to SC, nor CoC due to its brutal travel (to a Chinese port city (14-15 hrs of fight time) - to the host city airport (3-4 hrs of flight time) - to the venue (2-3 hrs of bus time)) and waiting time at the airports. So he would take RC.
Vincent 3rd, IdF and CoC.
In the 2nd group, Shoma, Boyang and Mika would listen to their feds and select host stop NHK, CoC and RC respectively. Shoma chooses first, he'd like to get a later start due to his coaching situation, so IdF. Boyang 2nd, he could select either SA or SC. Mika would get whichever one is left.
I don't have much clue to other US skaters' assignments. Some of your speculations are reasonable.
SA: Nathan/Boyang
SC: Yuzu/Mika
IdF: Vincent/Shoma
CoC: Vincent/Boyang
RC: Yuzu/Mika
NHK: Nathan/Shoma
Nathan chooses first, from last season's selection he'd take the first and last stops to meet his school schedule. NHK probably would not reject his request.
Yuzu 2nd, he would like SC for convenience. He won't choose IdF cause it's back-to-back to SC, nor CoC due to its brutal travel (to a Chinese port city (14-15 hrs of fight time) - to the host city airport (3-4 hrs of flight time) - to the venue (2-3 hrs of bus time)) and waiting time at the airports. So he would take RC.
Vincent 3rd, IdF and CoC.
In the 2nd group, Shoma, Boyang and Mika would listen to their feds and select host stop NHK, CoC and RC respectively. Shoma chooses first, he'd like to get a later start due to his coaching situation, so IdF. Boyang 2nd, he could select either SA or SC. Mika would get whichever one is left.
I don't have much clue to other US skaters' assignments. Some of your speculations are reasonable.