Here is the Tweet from Boucher..
Chris Nolan is under the weather and scouting locations in Asia for "DK Rises" but excited about Globes noms
Remember that Nolan first broke the news of the title for Batman 3, as it was then known, to Boucher so he seems to have a good line to the usually secretive director. If Nolan is looking for shooting locations in Asia, what could that mean for the movie's plot?
Well, the villain Ras Al Ghul is originally depicted as being of Arabic decent in the comics(despite being played by the decidedly non Arabic Liam Neeson in
Batman Begins), but his daughter Talia's Mother was Chinese. Talia is a strong contender to feature in TDKR as the female villain currently being cast by Nolan. Of course this may not have any bearing on the plot at all and Nolan may well just be looking for good spots to double for other locations, but it certainly edges Talia in front of Catwoman for that female villain character in my eyes.
I realize this is a lot of speculation off the back of a tweet, so more on this as we have it.