Just noticed the latest Character Story:
https://www.reddit.com/r/Higurashinonakakoroni/comments/16l8sw7/higurashi_mei_true_oyashiro_hanyuu_furude/
It seems quite likely that Tamurahime no Mikoto is the True Eva Ushiromiya(something I already theorized) and that Kazuho is Ange.
The fact that Tamura discovering that “Hanyuu” is Ange makes her want to protect her makes me suspect that Kazuho appearing dressed as Tamura is infact Tamura substituting as her to bait Juuza Amakusa.
Since Juuza Amakusa takes the form of Eva that means that Midori Kawata is infact Juuza Amakusa taking on Tamura’s original form.
Oh Juuza… You made a great mistake deciding to help Tetsurou Okonogi with his plan for World Peace. You are now going to die before Kasumi Sumadera even makes her move.
The Rosa of the current generation will be quite surprised when she discovers that the Eva of each past generation after the first one she survived was infact Amakusa.
Once Amakusa is dead it will be up to Midori Kawata and Ange to convince Rosa to expose Maria’s true nature to Kinzo for I am quite certain that Maria is infact the Beatrice of Kuwadorian I.E. Featherine after her horn was broken.