The shadowisles, Morde and his relationship to the Mist

When reading the new bios one thing that really struck me was that there seems to be two kinds of souls bound to the mist.

The ones who embrace death, therfore retains their identity: The ones who flees and tries to fight it, therfore losing their identity retaining only singular traits to define their undeath:

While the mist is filled with millions of souls it seems that only select few becomes powerful enough to manifest so powerfully as these. In spite of the apperant independence of these powerful souls they are still servants. Without the mist they are nothing, therein lies their power. It appears they simply "roll" with it, barring some summoning shenigans with Kalista. In practice all serve the same purpose, getting more souls for the mist where probably the majority of people killed simply end up as lesser, weaker and probably without identity and minimal individuality. As seen in the bios most souls simply seems to follow the powerful ones around which may hint of some kind of hierarchy. Or the champions may not even exist individually, each may only be one aspect or "face" of the mist. The point however is that they are bound to the mist and only serve as tools. Yes even karthus.

Then there is this guy.

My interpritation of his bio is that he stands leaps and bounds above all the rest of the spirits including the aformentioned champions. He was not made in the mist like the others (Karthus was "remade" by it and I think that the differnce beetwen him and the other souls are negligeable at best), his original empowerment happened long before the shadow isles. As such he was merely "resureccted" by the mist. He could tap into its power but not bound by it. He dominated the mist binding it to his will. His bio even talks about his "domain" in the shadow isles. So if the mist is controlled by morde, then he also indirectly control all the aformentioned champs who are bound by it.

The thing however is that the shadow isles champions do not seem to be aware of this. even the most independent one seems to follow in its track rather than the other way around.

Is this a set up for a civil war in the shadow isles? The most powerful souls realise that their will is not their own and tries to break mordes hold on the mist, or to take his place? Maybe when mordes will weakenes the mist tries to free itself by turning on him and the souls loyal to him? This set up makes for a lot of possibilities.