This team is the conservative option, it leaves Du Siyu's DTY and Zhang Qingying's rudi on VT in the alternate pen.
Zhang Yihan is the vaulter on this team, she has a DTT. Qiu Qiyuan has a FTT, Ou Yushan and Luo Huan have FTYs. The vault lineup will likely be Luo Huan, Qiu Qiyuan, Zhang Yihan. Hoping for two 13's and a 14.
On bars Qiu Qiyuan is the reigning World Champion, she can score above 15, she's the anchor. Zhang Yihan is also good on UB, but she is inconsistent. Hoping for around 14.5 out of her. Luo Huan scores very reliably around a 14. Ou Yushan is the backup able to score 13.5-14.1 range. The lineup will likely be Luo Huan, Zhang Yihan, Qiu Qiyuan. OYS would replace ZYH if she is having trouble.
Beam has Zhou Yaqin as the silver medalist from last Worlds. Qiu Qiyuan has also upgraded her BB, and now both are capable of 7.2 and 7.0 start values, respectively. If they both hit clean they could both score over 15. Luo Huan and Ou Yushan are both scoring around 14, but Luo Huan may have an upgraded (6.7) beam. If that materializes, the lineup would be Luo Huan, Qiu Qiyuan, Zhou Yaqin. If not, Ou Yushan, Qiu Qiyuan, Zhou Yaqin is the lineup. LH and OYS will both do BB in prelims, so they can use that to see how they're scoring.
On floor all five team members can put up a low to mid 13. That will just depend on who's injured/who they want to rest/how they do in podium training/prelims. If the TF was today the lineup would probably be Ou Yushan, Qiu Qiyuan, Zhou Yaqin. Zhang Yihan would also do FX in prelims, if not TF.
Medal Chances
TF: If they hit, I believe they will be on the podium. They were within scoring range of silver last year and this is a stronger team. You're effectively replacing Huang Zhuofan with Zhang Yihan (gain a 5.2 VT), and replacing Zhang Qingying with Luo Huan (break even since Zhang Qingying was only doing the FTT last year.) You also gain QQY's beam upgrade and OYS can walk on her foot now.
AA: Qiu Qiyuan was 4th AA last year, and she's upgraded BB since then. With the 13.2 she scored in last years AA final on VT, two 15's on UB/BB, and a 13.4 on FX (score from TF last year) that puts her around 56.5+, a competitive score to be in contention for a medal.
VT: no lol.
UB: Qiu Qiyuan is neck and neck with Kaylia Nemour for gold. If Zhang Yihan hits in quals she would also likely make the final. Luo Huan could be near the final or 2per'd.
BB: Zhou Yaqin and Qiu Qiyuan could win both gold and silver interchangeably. Luo Huan and Ou Yushan could be 2per'd.
FX: Zhou Yaqin made the final last year. Ou Yushan could make the final on a great day. Neither is in the conversation for a medal. Would be a win to make the final again.