I think it's similar to now and why - if there is Worlds this year - I think we can almost predict the team, outside of injury to the presupposed team. The current assumed team is Sasha, Anna, and Alena. The other challengers are Liza, Sofia, Stanislava, Evgenia???, Anastasiia, etc (but they would, progressively, require a series of unlikely events to earn the spot). The team, as it stands, is likely Sasha, Anna, and Alena because of their peak abilities and potential, their previous record (winning everything for years and really usually losing only to each other), and their reputation both domestically and internationally. Alena, who is currently the "weakest" has the same advantages that Evgenia had then against Liza when it comes to a decision between the two - better international PCS (Alena's are the highest in the world of currently competing skaters), better reputation and recent placements/medals particularly internationally (Alena is the reigning GPF and European champion and won pretty much everything at the junior level before that in the last two years unless she lost to the other two girls who are likely to go.) Now, while Anna and Sasha, don't have the PCS particularly internationally of Alena and don't have that advantage, they do still tend to have better PCS than Liza, especially Anna. In addition, Liza can't match them in tech content. They both have quads (that they've landed internationally in competition) and Anna has better spins, step sequences, etc. Plus, Anna (and even Daria) has already beaten Liza this year and Anna hasn't even attempted her 3 quad program this year yet. Therefore, I think that for anyone to upset this team - outside of injury - they would NEED to outscore one (or more) of Anna, Sasha, and Alena and not have it be close or have them make uncharacteristic mistakes that could be easily excused/improved upon.