Good points in there. Makes sense. Media announcements and new ride openings are global news, especially when it comes to Star Wars and Potter, so that makes some sense.Concerning opening date 'announcement' for Potter (and GESWL), Niles has an interesting article today on Theme Park Insider (Disclaimer: I'm no fan of Niles, but he does have some interesting points about this).
I could see Universal not wanting a Volcano Bay/Pandora opening all over again.