Yes...I heard this as well. I saw an article a few weeks ago talking about the press event. It was by invitation only for press, media, and certain shareholders.
I'm guessing they will elaborate on the Year of a Million Dreams promo, the new Nemo attractions, DVC, and other Disney news.
Not a press release, but a press event although there might be a press release associated with the event so that lazy event attendees can essentially use the Disney Company's words to write their articles.
Typically, the purpose of such events is to generate free publicity, not to make major announcements.
I agree with ADP about the likely content of the press event.