What do you mean they might go back to the 2005 plan?
Anytime there is talk about discounts that Disney may or may not offer, it's always speculative. But, if you notice all of the historical dates on the first page, you will see that Disney offered more
Free Dining dates in 2011 than in any other year. Will they offer that many dates this year? Who knows - only those marketing geniuses at Disney

Mid-August through late September is always going to be the height of hurricance season - and the reason they started free dining in the first place - so I doubt they will do away with that. As for other parts of the year, I don't think we will see as many "blanketed" weeks covered for free dining as we have seen in the past, but there are always going to be certain slow weeks during the year, especially the school year, that they will need to fill the resorts and the parks, so I think they will keep offering free dining during those historically slow weeks. Disney is in the business of making money, a lot of money, and free dining has made them a fortune.