Singed is fun and all but...

Pre-rework Cass sounds like she was a blast. Singed is a poison-centric tank, while Cass was a poison-centric mage (from what I know about her). Her rework was done right when I began playing League more intensely, but I've always loved poison mages in other games. It's so satisfying to see people slowly die from standing in your poison. I mean, I play Teemo sometimes but that's kind of dependant on people stepping on your shrooms. Is there any chance of Cass either being changed back or a new, true poison mage being made? I'd like to have the experience of playing one in league!