May 1st is the 25th anniversary and the day's festivities have been announced. All in all the events planned aren't too flashy. In the morning there will be a "short" rededication ceremony of the park with Studio's Vice President Dan Cockerell. Later in the day there will be a motorcade featuring costumed characters from the parks and after will be a fireworks display.
What do you think of what Hollywood Studios has planned? Fitting of a 25th anniversary? You can read all the details at the Disney Parks Blog.