^Yeah, signs point to Talia. Like I said on the Wumb, in this world Ra's al Ghoul is more of a title than an actual person, so I wouldn't be surprised if the title was passed on to Talia. Perhaps the Lazarus Pits are a training ground...a place for a rebirth or birth of sorts. And like you said, it brings the movies full circle. At the same time, Catwoman fits well into the tapestry left at the Dark Knight's end.
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