Well, I think Mao has the best SP of the season! Yu-Na has proved she can land her 3/3 consistently in the SP, and garner high marks, Miki too. So, I predict those 3 are shoe-ins for top 6 heading to LP.
The other 3 are a little more unpredictable. I think Kimmie will "bring it" in the LP, but she's been a bit inconsistent all season with the SP, which, IMO, is not really a good choice for her, her LP is much better suited. I really like Sarah's SP, her levels will keep her in the mix. Emily does have an interesting SP, and if she skates with attack and is clean, may very well end up in the final flight.
So, that's my top 6: Mao, Yu-Na, Miki, Kimmie, Sarah and Emily!
Joannie and Carolina can very easily disrupt my prediction, more likely Joannie than Caro. Yukari, IMO, is more a wild-card.
I would LOVE for Alissa to finally skate clean. If that happens, she could find herself in the final flight! Her spins, spirals and PCS could make up for not having a 3/3, and if her jumps are not perfect (meaning, she doesn't fall, but maybe other problems.)
Seanibu: unfortunately, Fumie will not be at Worlds. By not medaling at Nationals, she was not awarded a spot on the team. I'm hoping she takes the time to recover, and be healthy for next season! She's battled multiple injuries all season, poor girl.