Youthful With You 2's fashion show was held in the ninth episode. This segment was to let the trainees relax and wear the most themed clothes to participate in the fashion show. In the amusement park-themed fashion show, the trainees competed in their dormitories to show off their fashion outfits. Among them, Yu Shuxin's shoes became the focus and received a lot of attention. Zhao Xiaotang, Kong Xue 'er, and the other contestants also displayed their personalities and charms. The fashion show was an " extra-cursory activity " for the trainees after the competition. It made them happy and left them with good memories. I don't know anything about the fashion show of Youth with You 3.
At the moment, there's no definite information about more Dr Stone manga. It could happen if there's enough demand and the creative team is up for it. We'll just have to wait and see.
It's hard to say for sure. The decision often depends on various factors like the popularity and sales of the original series, as well as the author's plans and the publisher's strategy.