Mars Sov is [i]extremely[/i] clever and strong willed. I expect her to be one of two things; -Alive and well, after leaving her ship in the moments before its destruction. -Taken by Oryx. If she has been Taken, I imagine she'd be the kind of Taken that would keep her memory and sense of self. Wouldn't be surprised to see her rise to Oryx's Throne after his death.