I'm guessing if she makes it to the new 52, she'll resemble her Arrow counterpoint much more than Firestorm's stepmom. Which is fine with me because I really like her on Arrow. I think it would be cool if they brought her in as the second Oracle. If Barb is back in the batsuit, it would be nice for someone to pick up the slack as Oracle.
I was really surprised that nobody had posted a thing about Felicty due to her increasing popularity in Arrow. So I must say that I totally agree with you, she has become so popular that she has earned the right to make it into the New 52, just like Harley Queen, Chloe Sullivan or even Mercy Graves (whose impact in the media was insignificant). I'm absolutely thrilled with the idea of the New Oracle, she'd be terrific!