Either way, it looks like they're not pushing the sub through, so the DC line's fate is pretty much hazy at this point. I'd be surprised if it vanishes entirely, though...we'll see.
Officially, just Huntress, Ocean Master, Ra's al Ghul and Batzarro remain to be released. The fate of anybody else is unknown. (Though I'd guess they'll probably have something to say at or before NYCC.)