According to the article, their contract still stands as it's legally binding, so DC specifically still needs to abide by it as it can't be unilaterally revoked. But the rest of the world doesn't, so there's loopholes if they do it not as DC but another entity.
And DC can create an LLC which is legally owned by DC but also not legally DC which can do whatever it wants. As I understand it that pretty standard for movies and how Hollywood accounting happens.