“If you’re reading in the forums and you’re reading about the “Miracle” DLC or whatever, that’s test code,” said Faliszek. “To get tested through Microsoft certification, we had to do test scenarios with DLC.
“We haven’t actually come out internally with what we’re going to do yet.”
Also, as far as the original survivors are concerned:
“They’re not dead, so we’ll see what happens with that,” he said. “They’re not undead either.”
There’s loads more through the links there.