That would imply that there was something about 7 beside her body that was being groomed because otherwise the Queen is the Queen, and just d/l'd into a new body if something happens to the old one.
Maybe I'm just seeing too many possible cubbyholes. If Magnus is a member of the Collective, and if the Queen is a distillation of all the voices, could the Queen's personality be that of Erin Hansen? This would allow interpretation of Erin as the Queen, Magnus as the Queen's consort, and Annika/Seven as the offspring, tying in with the Queen's allusion of family.
I sometimes wish they'd cast Susanna Thompson as the mother as well.