Anyway. So, as I reread Cryptum the other day I saw a character named the Warden appear. I had initially believed it to be the same character as the one from E3 but according to Halopedia they are considered, for the moment, separate characters. I believe, however, that they may be the same. What leads me to believe as such is that the Warden is a metarch-class AI, as is Mendicant Bias (though he is much more powerful than the other metarch-level ancillas) The voice of Medicant Bias has been described (and heard during Iris) as devoid of gender. Something that I noticed during E3 was that the Warden Eternal seemed to also lack this gender distinction in its voice. Therefore it is possible that metarch-class AIs share this gender neutrality.