Not likely, since it's a Nickelodeon brawler, and they can't get too unbalanced with the roster. However, I can mention that she was also just announced as a playable character in the Shredder's Revenge retro beat-em-up, and now that people know this, they're really hoping for Casey in that.

https://www.youtube.com/watch?v=_RfrrEF1VLo

Not likely, since it's a Nickelodeon brawler, and they can't get too unbalanced with the roster. However, I can mention that she was also just announced as a playable character in the Shredder's Revenge retro beat-em-up, and now that people know this, they're really hoping for Casey in that.