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Game of Thrones - Season 2 Casting Rumors *UPDATED* Gwendoline Christie is Brienne

New casting clues from George R.R. Martin from his "Not A Blog".

Under the post title of "I'm Blue" he wrote...
"The She-Wolf of France has stormed the barbican. The Aussie turned her into a bunny."

The two clues seem to support Gwendoline Christie as Brienne.

Gwendoline Christie

Clue #1
"The She-Wolf of France has stormed the Barbican."

Christie starred in a video for Patrick Wolf called "Damaris". One of the B-Sides for that single was "Queen Isabella (She-Wolf of France).
Source: Video at The Gaurdian

Clue #2
"The Aussie turned her into a bunny."

This likely refers to Polly Borland (Aussie phtographer) that did a photo shoot called "Bunny Nose, where she turned the 6'3" Gwendoline into a bunny.

Source: Article at FashionsMostWanted

***UPDATE #1***
HBO Watch confirms Gwendoline Christie as Brienne.

Source: HBOWatch

***UPDATE #2***
GRRM confirmed on his "Not a Blog" that Gwendoline Christie is indeed Brienne...

"This was another one of those cases where there was hardly any debate. The day the first batch of auditions went up for the role, we looked at a dozen actresses who were reading for Brienne and one actress who WAS Brienne. Gwendoline gave a great reading, and her look was just perfect. No, when she auditioned, she did not look she does in the photo above.[Referring to the above photo] She came in looking... well, like Brienne.

As for my clues... Christie played in a music video called DAMARIS, which includes a song about Isabelle, the She-Wolf of France (wife of King Edward II, for the history nerds out there), and played in Shakespeare's CYMBELINE at the Barbican theatre. She also posed for Australian photographed Polly Borland for a show called 'Bunny'."

Source: NotABlog

Also rumors about one Gemma Whelan as "Yara" Greyjoy. Who is assumed to be a renamed Asha Greyjoy from the books. Maybe Asha sounds too much like Osha (who has already been introduced) and to avoid confusion they may have renamed Asha yo Yara.....

Gemma Whelan