They probably will. Shcherbakova & Trusova turn 18 this year, it won't be a problem given how valued figure skating is in Russia. Meanwhile the tiktok & social media generation in USA probably hits that programme hard, I don't see them Americans spending years on the ice rink to become a pro figure skater. Add the coaching sex scandals in gymnastics and some reports in figure skating and it might really turn south soon. No such issues will plague the Russian programme IMO.
IOC openly talks about chasing the "next generation" of viewers. They allow 12 year olds to compete in skateboarding in the summer so having 15 year olds compete in the winter is suddenly the worst evil? Not really.