Checked everyone's date and there does seem to be some consistency to gap between the graduation / debut dates. They seem to happen around 4 months before their debut anniversary would be (+/- one month).
Even Selen's termination followed the trend. (Especially as I remember her wave and Lazulight were supposedly signed around the same time?). If the theory is true, then I wouldn't be surprised if Niji waited on dumping her until her contract expired. Only one that doesn't is Zaion, but that was obviously a special case of speedrunning every fuck up possible.
-So if the timing thing is true, then the most obvious follow up graduations would be more from XSOLEIL or Luxiem.
-After that, it would be Noctyx around 2 months from now in October. Which is conveniently around the same time that Alban is supposed to come back from his hiatus.
-Then it would cycle back to Lazulight and Obsydia somewhere between December and February.


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Another thing that came to mind when writing this is the stupid NBA collab they're doing. I bring this up because the collab is a bit weird in that it has multiple "phases" and not just a one and done like most merch sales. So this collab is actually still ongoing and because of "contractual obligations" I think its unlikely anyone involved in a future sale is going to graduate until its over. Also want to note that Phase 1 ended in July 10 (this merch is no longer for sale) and there has been no news on the next phase.
The collaboration between the NBA and NIJISANJI EN/NIJISANJI is launching, featuring exclusive original merchandise!
collection.rakuten.co.jp
-The livers that were left out of it were: Rosemi, Aia, Aster, Scarle, Meloco,
Hex, Kunai, and Vivi.
-So Hex is gone. From what I wrote before Meloco is a potential current graduation. Then Rosemi in a few months.
As some extra rratting:
-The livers that were part of Phase 1 were: Vox, Uki, Luca, Ver, Elira, Sonny, Kotoka, and Yu.
-Vox, Luca, Ver, and Kotoka are part of the waves that I mentioned are possible current graduations.
-Uki, Sonny, and then Elira are part of the waves that could have graduations soon.