No escalation. I think +Anonymous
knows why it was taken down there. It's the right move by Twitter. I generally support Anonymous' political and social beliefs, but I disagree with how they sometimes force private information (the same information they try to protect in other endeavors) for the public to abuse.
I have faith that Anonymous will simply move on, and a new Anonymous-like twitter feed will be started shortly. Anonymous generally has good will towards Twitter, as it helps them publicize their actions. I doubt they'd do anything to seriously obstruct themselves in this regard.