Hm... let me give it a shot:
Spoiler for not-that-much-but-still-kinda-is-a-crack-theory:
Going on with the whole new girl = rose theory, maybe the reason why she hasn't shown up yet is because Gohda has clearly been using her (during her rose form) to make dinner. And after three games, she's kinda fed up with it, so now she's going to actually take form and indirectly or directly kill him. And while she's at it, she might as well kill the rest of them, since she had to go through the horror of being eaten alive(?). Or even, just being put into their mouths is terrible enough, but a good motive for her to kill people.
... If this is the case, I will laugh my head off, and then be gouged by a nice steak.
