User blog comment:Force Of Reckon/Two new Targonian champions teaser?/@comment-26815373-20160226201908/@comment-24474109-20160228162641

Well it does say that those who return from the summit are changed beyond recognition. Aurelion Sol (who is Ao Shin, a wind dragon afaik) may come from Ionia, someone who mastered the wind technique that Riven and Yasuo have. They then climbed to the summit, failed the test and returned but were changed, perhaps into a dragon.

I wouldn't count Taric nor Aurelion Sol out.