Considering they don't appear in the present story, I'm curious what happened to these girls.
Knowing this manga, I'd imagine they'll just get killed off at some point by Rina Shioi at some point but I'm curious if the manga artist would bother with their story this much if he just kills them off. I wonder if one of them might turn into a site admin, I mean we've already seen that site admins are human girls, most likely previous magical girls. What if the admins are using the deceased magical girls as host bodies?