A fan-operated site about all things Disney claims a Harry Potter-themed attraction may open three years from now in Walt Disney World, Florida. It was reported two weeks ago that Universal Studios head Bob Gault stated "Disney has Harry Potter wrapped up" when questioned about a possible ride, in a company Q&A with his staff.
Keep in mind this is unofficial. The Disney Corner's own disclaimer reads:
The Disney Future and its author are solely independent of Walt Disney Productions, Inc. and any of its corporate divisions. The names of theme parks, rides, resorts, restaurants, attractions, and characters used in the document are the property of Walt Disney Productions, Inc. as are any logos and trademarks. The author makes no claims to the validity of the data provided in the document and holds no responsibility for changes in plans or development.