Soooo while going through the textures I found this strange set of textures for Isa. The first one is "BIO_Vineta_10" and the second is "isa_body_texture_armored". If you look at the neck and shoulder area you can tell she is in fact wearing the same armor that Replikas/Elster's Gestalt wear. Also her hair seems to be turning white as evident by the armor texture. On the first pic it looks maybe just like the lighting but the texture itself seems to confirm her hair was also turning white.
I included the third picture so you can see how it looks in game compared to what I dug up. Not really sure what to think about it to be honest but it sure is cool.
As always I´m late lol, but I had to do a fan art for the anniversary of one of my favourite games. Playing Signalis was an experience that changed my life and I´m so happy I got to try it. Looking foward to see more Rose Engine games!