Yes, there is a graduation queque.
No, I'm not telling you who's in it.
Everyone in it was told that they will be put at the back of the queque if they reveal they're quitting before the announcement.
Nobody in it is trying to fuck others over, but I suspect one of the bullies who's staying will leak shit right before someone's announcement and try to put the blame on them as a final fuck you.
If you like your oshis, help them be less sad until they can leave, and follow their PL in advance, even if nothing is happening there yet.
Niji is using cherrypicked cases of online criticism of them as an argument to make negotiations harder to the livers leaving, so curb that until they're out.