Super mega weird theory, the Stewart look exactly like Fog it's almost a given that they are related. Now listen very well, that would mean that Noah is related to him too right? So if both the Stewart guy and Fig died the next in line of the family would be Noah (I guess, or something, I know it may not make sense but imagine it does). And Luna is Noah foster Sister, so if Noah does too and Jack makes a mini Jumbo move to give Luna the relics so she technically becomes queen for five minutes. Dunno what happens but then Jack kills her so he can technically say he killed the queen.... Yes that makes sense in my head.