Aside the costume, and the hope for a new one more in tune with the classic.
I am positive that Wolfman is writing her again, because Didio is right that he is the best man for the job.

Despite the abominable art in the old mini-series, pitting Raven against the Medusa Mask of the Psycho Pirate was a good story and I am certain it would have been better received if the art hadn't resembled an acid trip.
Also, it's worth remembering that Wolfman was the writer of the Trigon villain issue, and managed to make Raven work as a villain when she faced off against Jon-El in Superboy.

What I am hoping this new mini-series gives us, is a sort of aftermath to her change of heart and a setup to what her status quo will be now. With this I am hoping for an appearance of Trigon or Belial, and possibly guest appearances of other heroes reacting to her and Trigon being around.