I imagine if Elidisbus really is dedicated to the balance, we will become allied with him once he becomes aware of our actions on the First, that or he'll get killed before that can happen. Either way, the nature of just what the antagonist is will shift once one or the other happens. It won't just be "the ascians" or "the light", it will be members on both sides constantly trying to further the light and dark, and those just trying to amuse themselves of it like Zenos.