User blog comment:KaiserLos24/New Shadow Isles Champion- Kalista (Maybe :P)/@comment-25606958-20141031231527

Here's a crazy theory I just came up with: Kalista is not a new champion, but the "codename" of a rework for Evelynn. She would not be an AD carry with spears, true, but she does come from the Shadow Isles, and what little is known from her past suggests she was once human and was transformed by some curse into a "beast" (similar to Callisto).

She also had a relationship with Twisted Fate, so there's a connection too. No idea about the other champions, though.