I'd like to see a few episodes covering a story arc about her fighting her performance anxiety and working her way up to becoming a permanent member of Rarity's choir. It bugs me how so many writers think that stage fright is the same thing as shyness and I think it'd be awesome if they eventually develop her character enough so that she eventually overcomes the stage fright, while keeping her shy trait.

^ Agreed :/

Of course she should. Preferably with Discord. <3