Kostakidis took legal action against SBS for breach of contract .
It was widely speculated that Kostakidis ' contract stipulated she would be the network 's main news presenter , and maintain editorial control over bulletins , somewhat altered by World News Australia 's change in format .
news presenter took legal action against SBS for breach of contract .
It was widely speculated that Kostakidis ' contract stipulated she would be the network 's main news presenter , and maintain editorial control over bulletins , somewhat altered by World News Australia 's change in format .