Oh, hmm, that’s certainly a possibility. She called them San, presumably that’s an Asian name? Have I missed any reference to them before or is this just brand new onscreen?
I went back through the flashbacks and grabbed these of San:
And then when the helmet’s off, you can’t see the face, except in a reflection, rotated for convenience:
That’s not Michael, right? Even though one of the flashbacks also included:
I assume that’s just one several references to what we saw in the mirror universe in s1.