Yorick vs Mordekaiser, civil war for the isles

Ok after the update of yorick Ive been wondering when these two would come to blows. The reason why is because they both have very different goals for the shadow isles. Yorick wishing the bring back the ancient way of the islands turning it around into the Blessed isles once more.

Mordekaiser how ever is using the new found realm to build his army which means he probably wants it to stay the way it is.

Both have control of the undead, Yorick him self even being able to use the very corrupted mist. So I bring you the question, in the inevitable civil war of the shadow isles who will win Yorick, the shepherd of the Blessed or Mordekaiser, The war monger of the corrupt

what sides do you think the shadow isles inhabitants take?

All of this upto your heart, after its been ripped out.