The Gametrailers LucasArts announcement happens tomorrow. As I mentioned in the last post, the LucasArts twitter page mentioned that it will be a new intellectual property, and the LucasArts blog has been hinting towards Lucidity.
However, the Gametrailers Preview shows blurred concept art from The Secret of Monkey Island: Special Edition when the secret announcement is mentioned.
The question is whether the Monkey Island art is hinting at something, or whether it was put there to throw fans off the scent. It's possible that a Monkey Island 2 Special Edition could be announced, but if that's the case it's curious that they showed Monkey Island 1 concept art. We'll just have to find out tomorrow. :)