My wife spoke last week to a friend at church who works as a
travel agent and mentioned the mousemiser info that I had shown her. Her friend's reply was that in general, travel agencies can get some advance notice on upcoming discounts, but not all the details. In fact, she admitted that her office was aware of Disney likely offering a Public
Free Dining package again with booking dates starting in early April - BUT, they were not given any details about the offer, such as travel dates or resort restrictions - something my wife asked her directly. When my wife mentioned that this website included the travel dates, her friend wondered how they would have that info - when my wife told her the dates matched the Disney Bounceback offer (yes, I keep her filled in regarding the details), her friend thought that mousemisers simply predicted the dates based on that factor. While she said that there is the possibility of that being accurate, it isn't a guarantee that they are right.
Essentially, my wife was told that when there are similar offers in the travel industry geared towards different groups (in this case: UK, Bounceback and Public), there are often slight - and sometimes major - differences in the offer details. She's not expecting to know for certain the travel dates or resort limitations (if any) until it opens to the VISA holders. At best, she admitted that in the past she has had the official info a day or two ahead of the advance VISA offer - but promo details have been harder to come by this year.