400mH will be harder to medal at with Syd, Bol, and Muhammad running 50-52.
Muhammad clocked only 53.13 (SB) for bronze in Eugene, ran rather slow or very slow other times in 2022 and this year clocked only 55.72 in Rabat DL. It looks like she is past her prime at age 33. She will even have a problem to qualify at USAs.
Podium will be SML ~51 (or just under 51), Bol ~51.5 or 51 low I hope and the third female 400 m hurdler this year is Britton Wilson. There are no other serious rivals (only Little for 4th). What will Wilson clock no one knows, it should be 52.5 for new nice PB or at least =53.
400mH will be harder to medal at with Syd, Bol, and Muhammad running 50-52. Hall is about 2 seconds off of a medal right now. That is a lot of time to drop through form improvements and steps. In the 800, fresh with pacers, she'd probably run 1:58 this year, putting her closer to a medal. 800 may be hard to medal in but right now we don't know whether Athing Mu is going to be at her best. She has a guaranteed entry to World's, as does Sydney McLaughlin in the 400mH, so there is an extra spot to be had on the U.S. team in each event.
Her PR is 2.5% off a time that would get her in the medal conversation in the 400mh but 6% off what she needs to be in the conversation for the 800. Muhammad has been slowly declining since Tokyo and looks off this year and seems infinitely more beatable than any of Mu/Moraa/Hodgkinson --she ran 53 in a flat 400 in Bermuda two weeks back when she used to do 51 over hurdles.
And btw Hall ran a ran an 800m individual fresh last month where she only took the lead last 200m. She went 2:03.2 (60-63). In Gotzis she went 60-62. 1:58 she's got to go out 2s faster while fading 2-3s less.
To me it seems crazy to think she has a better medal shot in an event she doesn't have qualifying standard for even USAs, vs the one she has better PRs than world finalists.
Anyway - all academic/hypothetical - Hall vs Thiam is gonna be absolutely huge this summer and I'm so ready for that.