If the trailer of CoO is any indication it might be a yes, although VoG is it's own special area. At the same time though there has been vex units simulating people with frightening accuracy. With Mercury probably being a Vex mind itself with the forest being used specifically to study guardians( idk about accuracy if considering the travalers powers though ) it shouldn't be too much of a stretch, or there's another Vex planet for that.