I don't think Satoko is that much of a lock anymore. I think a lot will depend on the GP and how it goes, a spot/medal at the GPF would probably help a lot. Mai seems to be really consistent and it seems like after the gold medal at 4CC her pcs started rising (she receives higher PCS than Wakaba which is...questionable imho) and if Wakaba gets a decent layout (someone save her from her team y.y) she could be a threat. Marin will receive a push for sure (and while I do not like that, she is truly talented and she was underscored when it comes to pcs pretty much all season, especially if compared to the likes of Zagitova)...I don't think Kaori has much of a chance, but I would have said the same for Mai last year so...
Re: men, there's not much besides Yuzu and Shoma. Sota is promising, but who knows how he is these days? I wouldn't put much faith in the junior men, actually, Koshiro has even grown a lot so he might struggle with that as well.
If someone wants to suffer, Shun Sato is age eligible for juniors from next season. He's a little mushroom from Sendai (I think) and he looks pretty good. He's working on his 3A though...