It means it's classified
When a company keeps saying that "we can neither confirm nor deny this will be at ____ press-conference", but have already stated that they are considering the game for future release, it's usually due to legal reasons that they don't release any more information.
After all, a company wants to hit the market just right: if there's hype too long BEFORE a product is released, the public expects unrealistic things from the game, and if there's not ENOUGH hype, the game doesn't get nearly enough sales after the product is released.
Which is why all of us have to wait and get the news at the same time as everyone else in the world
EDIT:
Unless Frontier has run out of funding or ideas, I don't get why we haven't heard anything in over a year.
Games often take more than a year to create. They also take time to get testers in to make sure the "new" game is fun in a different way, so it isn't just a "tack-on" to the old engine, but isn't so completely rewritten that it's a new game entirely. Many sequels flop because this hasn't been properly balanced, but when a company DOES balance this well, the sequels often do just as well (and sometimes several times better) then the originals.
I would rather see Frontier take extra time to perfect Lostwinds 2 than get a butchered sequel that loses money and kills the Lostwinds name.
