Some people seem to think Czisny is a lock for the world team- I don't agree with the "lock" part but I do think she inherently becomes the favorite, particularly as defending champ. Also, remember the curse of defending champ at Nationals? No lady has won back-to-back Natls in recent years.
Also, many seem to be frustrated with Nagasu's progress, or lack thereof as they perceive it. Nagasu is getting a reputation as a purely hot/cold skater- when she is on, she is ON but when she isn't, she's easily beatable by all the other top Americans. I think she peaked too late last season (at 4CCs)...remains to be seen whether she can pace herself just right to perform much better at Nationals. Ideally Czisny and a WELL-PREPARED Nagasu would be our best shot this season at getting back those 3 spots (of course, no guarantee though).
And, as I mentioned above, many are also counting out Flatt, which I think is a mistake...that said, however, I think her best days are clearly behind her. If she does get on the world team, I predict it would be just barely squeezing through in a close call, maybe with the help of Nagasu & Wagner faltering.
And, of course, Wagner- yes, she's flown somewhat under the radar in relation to Nagasu, Flatt, and maybe even Czisny last season...then again though, that's understandable since Wagner has sabotaged herself time and time again with that short program. Some people have criticized Nagasu for not wanting it enough, but I think Wagner may have the opposite problem- wanting it too much. This will be a really big Natls for Wagner since Flatt may very well be on her way out, and Nagasu depends on the weather that day. It's really Wagner's best shot at a World team since 2008. It's up to her to stay in contention though, and it begins with the SHORT PROGRAM.