Zagitova is just getting worse. I expect that to continue at worlds. I do not wish her ill, I do not enjoy her skating even at her best, but she seems like a really nice girl so I do not wish to see her continue to struggle and it would be nice to see her have a respectable outing at worlds and skate better LPs than Nationals and Europeans to atleast make top 5, but I will be surprised if her current downward trajectory does not continue atleast for worlds. Due to high PCS she might still make top 5 or 6 anyway, but I expect some major jump errors just like her last 2 competitions. Meanwhile Medvedeva seems to be back on the upswing ATM, which is what I think swung the Russian fed decision to pick her over Elizaveta and the others in consideration for the 3rd spot. I think either Medvedeva or Tuktamysheva would have placed higher than Zagitova at worlds, but I will be particularly surprised if Medvedeva and Sofia both do not. Of course if Zagitova matches her GPF skates she would be almost a guarantee to medal, would have a good shot at silver, and could win if Rika messed up badly enough, but I will be surprised if she can match her GPF performances come worlds.
I think she is struggling with a variety of issues, and the signs were there early, but I think compounding it all was skating great at the GPF and losing soundly to Kihira who didnt even skate close to cleanly in the LP. It wasnt even the triple axel that mostly did it, Kihira absolutely killed her on GOEs, while matching her PCS, the base values werent even that different. That sapped her confidence bigtime, and add to that sharing a rink with young girls doing jumps like quad lutzes she will never realistically be able to match, and some of the negative blowback still of her controversial Olympic win over Medvedeva (not as bad as the negative media and fan blowback at the time of Sotnikova's win over Kim and Kostner, but still enough to feel), and I think she is not feeling that confident, in addition to the physical and technical issues she is now dealing with.