Kaplan has the means and the knowledge, but is she someone who would have Red's unassuming helpers killed off left and right? That part would be out of character for her, especially considering how she was treated by Red as one of his employees.
As long as the enemy behind it all is someone we've met before (but not Alexander Kirk again), then it's all good.
As long as the enemy behind it all is someone we've met before (but not Alexander Kirk again), then it's all good.