While I see it happening on the Ladies side (as happened these Olympics), I don't think a man still in Juniors right now will come crashing through to win the Olympics in 2022 unless he enters the senior scene at least two years before the games. In men, there seems to be a longer road towards increased PCS because the men are not as consistent as the ladies. As such, I think only those currently in seniors will manage to improve steadily in their PCS and tech/GOE through the next quad in order to fight for the gold medal in Beijing.