User blog comment:ND999/Lore Hypothesis, Mt. Targon, Guardian Sea and Shadow Isles/@comment-7709681-20141115150533/@comment-25652619-20141115213310

That sounds great.

I think, Kalista by this act show herself as honourable spirit, though she turns into avatar of vengeance.

Also, if Riot shall start the Shurima-like event (without additional game mod, they shall don't launch Hexakill again?), they start the story by Nautilus's journey to Shadow Isles. Or Bilgewaterian/Noxian expedition to this place.