A nice interview with Chuck Dixon, Bryan Q. Miller, and Lee Garbett was just posted here:
https://www.newsarama.com/46588-step...s-batgirl.html
Lots of good stuff in the interview, probably some worth citing here.
One thing I was amused by was this that I took to be a comment about the current Spoiler mask, even though it really refers back to to the original one too. (But - why go back? I guess the point is by the time of "Batgirl," the character design had evolved into something better, don't jettison that.)
Nrama: What do you think of her placement in DC's comic books now?
Miller: Never in a million years would I put her in a costume that covers her smile/smirk. Laughing in the face of danger – and danger being able to see that laugh – is 90% of her hero game.