He's definitely not talking about Enterprise, because he wrote that Enterprise is old news.
You could well be right, but he also could have meant that the decision to put Enterprise on Blu was old news internally. What could be coming up that directly affects him, and thus be part of the 'hostage crisis', could be work on the documentaries for Enterprise.
And now, his latest tweet: "There's certainly a lot of HD STAR TREK happening all up in this joint. I mean...more than usual."
You know, if he doesn't know about it already, he would get a kick of how much we're dissecting his off-hand tweets in here.