Yes, several posters on the Resorts board have posted that they have booked the current free dining offer at Art of Animation. AOA apparently allows you to book certain themed sections if you wish, and some appear to be currently excluded (they could get free dining booking Lion King but not Cars) and the Little Mermaid buildings (the only section that has regular rooms rather than family suites) do not open for occupancy until September 15.
For a family of four who doesn't really need a family suite I'd go with CSR and the regular dining, unless you really want either the suite or the new resort.