while I'm all for interpretations of the Blood aspect that break away from the "bonds" orthodoxy, "potential" feels like a difficult one to realise in a way that's truly distinct from how other aspects are used. Aranea's power is to realise potential in one way or another, for instance; so is Jake's power on its own, really. hell, Pages are a whole class whose shtick is potential.

now that I say that, though, the concept of a Page of Blood whose ability is the potential for potential is a little intriguing to think about.