Just had a thought. What if the Warrior of Light becoming the Warrior of Darkness is the way Hydaelyn is going to balance out light and dark after the Ascians are killed off?

Killing of the Ascians is all but necessary at this point in order to stop them from further messing with history, the shards, the source and ending life as we know it. But that creates an imbalance. So what if the balance is kept by having someone else take the place of the Ascians after the fact? At least, so far as Balance is concerned?