I doubt it. He's asking her a direct question - "what sayest thou" = "what say you" = (more likely to be phrased) "what do you think about this?"
I can't see that being aimed at anyone other than the person he's directly speaking to.
The lorebook does mention that the Warriors of Darkness adopted other names after traveling to the Source.... so possible, but I'd rather not have all the characters taking on other names just for the sake of it. It seems odd enough that they're doing it for all the races.
