@GohanYeah, she's a really big Final Fantasy fan, and she'd be able to write a character like Terra incredibly well, but 'Arena' role-play isn't her cup of tea. I usually collaborate any battle scenes her characters are part of when we do our own writing together. Anyway, she usually follows whatever role-plays I'm part of, since she enjoys reading my writing.
More than anything, she said she doesn't have the time right now. I can understand how seeing her appear could've made you think she wanted in though.
Edit: With that said, the suggestion was her idea and I'm not taking credit for it.