What was JULIA doing with...
... THE GREAT GATSBY? She said something like "I started writing it, and as time went by, I realized that it was a play rather than a musical". It didn't sound like she was just copying and pasting the novel into a script. So was she trying to re-write it? I mean, I've heard of (and even seen) plays like that, where the basic plot is the same but the dialogue is completely different and there are some new plot points. The thing is that GATSBY is one of those classics that I don't think people would like seeing it changed like that. Even the 2013 movie used the same dialogue. Same with ROMEO & JULIET 1996, while the 2013 one changed the dialogue and people hated it. Besides, after all the trouble of getting the rights and it won't be a musical? Well, if she had decided to make it and the show had been renewed for a 3rd season, it would've been overshadowed by the movie (it wasn't a musical but it was a bombastic spectacle that emphasized on music and dancing a lot).
By the way, would you like to see a GATSBY musical being made in real life?