So what should we expect from Rachel Berry through the rest of Season 2 and onward? Well, it’s difficult to say for certain, but hopefully the writers will continue to keep Rachel’s characterization true to her original intent on the show – maintaining her identity, but at the same time propelling her forward through her arc. Rachel Berry is not only in the spotlight as a main character and frequent soloist, but also in that she is an isolated character subject to a substantial amount of scrutiny by critics both within the show and those watching at home. She should be moved gently out of this narrative isolation and into acceptance and belonging, as a part of something special – with as little erosion to her identity as possible. She is a fixture on Glee, a solid anchor to the show’s emotional and tonal landscape, and when Rachel’s portrayal loses its footing, the entire show – and the audience – does as well.
– Rachel Berry and the Spotlight: Rachel, Her Dreams, and Her Future