For the ladies, I'll guess Caroline Zhang, Nana Takeda and Ashley Wagner.
With one event to go, it is still not completely clear who will be there. Both Megan Oster and Melissa Bulanhagui have a good chance to make the final. If either of them gets second or better in the last event, she will knock out Stefania Berton of Italy or Rumi Suizu of Japan. Even with a bronze it will be a tie, and Orser at least will probably make it on the tie breaker.
In fact, it could be five U.S. ladies plus Takeda in the Final.
For the men, Tommy Steenberg will probably make the finals even if he finishes only fourth. (So far, he has the most average points which puts him in the lead for tie-braeakers.)
This could be an all U.S. poduim with Steenberg, Carriere -- and on a wild hunch I'll take Mroz over Kanallikan and Reynolds.