As I said in the past - Possibility for that is basically noneWhat if maybe they don't put Cassandra next and put some other vet?
To keep us guessing.
I know Cass will show up eventually but maybe this could become true. Deferring this Season as the Waifu season could have made Project Soul pick somebody else (male) or somebody not Cass.
But if for whatever reasons they would make such a move I would install this game just to uninstall it again lol