Boone will say goodbye in the upcoming Season 8 finale of the NBC crime drama, reports Deadline. "The decision about Boone’s exit was made early on, well ahead of The Blacklist‘s Season 9 renewal in January," reports Deadline's Nellie Andreeva. "That allowed the writers to craft the arc for her character, Elizabeth 'Liz' Keen, this season as her final chapter. I hear the decision was mutual, and Boone already is plotting her next move. Reps for NBC and Sony Pictures TV, which produces The Blacklist with Universal TV, had no comment."