I saw a preview of the new season, and she is sitting on the floor surrounding by papers and pictures saying "I've totally figured it out! It all makes sense!"
I basically did the same thing in my apartment, surrounded by random papers that I thought were significant, and I thought I had discovered the secret of the universe. I figured it out!
So yeah, I think her portrayal is great. I also like that they show that a person with bipolar can be amazing at what they do. I love that show and can't wait for October!