Yes: If any top 10 vtuber in the list announces their intent to graduate or cease activity or go on hiatus (more than 2 months ).

Source from: https://www.dexerto.com/entertainment/top-20-most-popular-vtubers-2287865/

Note KizuaAi is removed from the list as she is already on Hiatus per
https://en.wikipedia.org/wiki/Kizuna_AI

Same with gawr gura.

Note: people who are already on hiatus from the start of this poll will be excluded from the candidates.