Amazing how he does it.

Tagged most of the newly added characters

There's 1+ characters whose names are still unknown though, but the artist notes that in their commentary. In terms of names that have been properly revealed ingame, there's two characters who're unknown (excluding Erika since her name was revealed in CBT) , which are Kirara (between Erika and Ibuki; commonly remembered for her incendiary grenade shot in the first PV), and the blonde, dark-skinned reporter from Kronos that appears in PVP and also in the 2nd PV (between Mari and Natsu). Kirara's name, however, had been uncovered quite a long time ago through datamining (her CG as well, actually). Therefore, the only fully unknown (at least, to my knowledge) is the Kronos reporter girl.

kirbylittle said:
Therefore, the only fully unknown (at least, to my knowledge) is the Kronos reporter girl.

With the release of V3 Ch3 Ep5, the final girl's name has been revealed as Kawaru Shinon, the proclaimed "idol reporter of Kronos's News club."