The Sion Theory (How Sion can regain his humanity.)

As we all know, a dagger coated in Jarvan IV blood was used to jump start Sion's body back into animation. If you have seen Sion's lore, it shows that he only remembers himself when he is in combat, but I think there is a darker way to look at it. Sion has to feed on the blood of others to keep his mind from slipping from him completely, but this "fuel" is only temporary and does not last long. For Sion's re-resurrection, the blood of the descendant who initially killed Sion was be used to revive him and make him the zombie we know. I believe that for Sion to fully regain his humanity, he must kill and consume more blood of the descendant who killed him, who in this case would be Jarvan IV. If a small dagger with a small amount of Jarvan's blood was able to jump start Sion back into animation, think of what a bodies worth could potentially do for him.