Is Ao Shin a champion they're still going to release?

Meddler said while his idea is cool it's not something they really want to work with. If anything inspired by him ever gets released, it's 9/10 chances not going to be in 2015.

What's he do again?

They said it wouldn't be seen before this year, however it was still on hold cause of the game design issues. So he may be out this year or a long time.