User blog comment:Leafstorm001/Incoming Void Threat Theory/@comment-25113986-20141120203556

That "mothlike" champ visible in some splash arts is probably Battlecast Anivia.

The off shape likely comes from her being made into a plane that doesn't flap the wings.

The  Battlecast Chogath teaser revealed the serial indicators of the battlecast series and the upkomming ones were SKA MAW and ANV