Unless the restaurant needs to be in the mall proper (and there are only a couple of larger sit-downs in Woodfield Mall), it might be fun to drive the mile west on Golf Rd to Bahama Breeze, which is our favorite watering hole. If you haven't been there, it's got great tropical theming, a big outdoor verandah-type bar with firepit, reasonably-priced food on an interesting menu, and a great micro-brew Aruba Red beer. Since we hang out there all the time, we know the management and I'm sure they'd do something nice for us. This will only work, of course, if folks are willing to drive from the mall instead of eating on site at someplace like Rainforest Cafe or Stir Crazy. We are happy to drive or stay put, just wanted to suggest a place with some "tropical' theming with a bit less crowds than Rainforest Cafe.
The last article I read about this said the DVC preview center was designed with imagineer input, will be over 6,000 square feet, will have a full 2 bedroom model of AKV, and an area to keep kids busy while parents buy in! That article slated the opening for late summer.