Liz is still smack dab in the middle of her abyss, and it will take a lot more than a change of scenery and more involvement with the Task Force for her to see the light again.
Red has warned that she may not be able to live with her actions once she “crossed the abyss,” but that hasn’t stopped her from doing everything from killing to disposing of a body.
All things considered, as jarring as it will likely be to see Liz keeping secrets and hiding her own agenda from the Task Force, it wouldn’t make a whole lot of sense if she was suddenly reformed back into the agent she was before Tom was killed and she was left comatose.