So a sudden thought about this chapter. FGO BB isn't the BB from CCC but she is supposedly a copy of her. In Passionlip's interlude, BB lists all five of her children and none of them are spoken in hypothetical terms. Furthermore the term Sakura Five is used semi often like all five exist.
This causes a contradiction with the CCC game where only 2 alteregos exist. Previously I just assumed that the other 3 were put into an inescapable cage explaining how they could be talked about in FGO but not appear in CCC but it turns out those 3 were never created. So what is FGO BB suppose to be a copy of? Her Foxtail version?
Really going for that kaiju battle, eh? Giant Tamamo vs Giant Sakura. We know Nasu likes giantess going by this manga so it can happen.
The Tamamo Nine do have
designs(you tell which one is Cat and which one is Vitch in that picture) so if they appear, they don't have to be shadowy. Maybe a bit shadowy if they want to change the designs in the future.