Mount Targon to have a dragon champion?

Riot has recently released the Mount Targon lore page, and with it, two open slots for different champions/lore. Riot has also recently officially canceled Ao Shin in favor of a different dragon they are currently calling Aurelion Sol. Aurelion Sol roughly translates in Latin to Sun Lion. I don't think it takes a genius to put two and two together that Aurelion Sol is gonna be a Sun Dragon for Mount Targon.