I voted yes. It will still save us money, but not as much as before. We just got back from a week at WDW with the dining plan. We used all of our credits.
If you are a family of eaters and eat at some of the better TS restuarants, it is still a good deal.
On this last trip, our average TS meal was $280 with tax and tip. This was for a family of five. That is $1680 for six days. If you take off 20% with DDE, the cost is around $1300. The cost for the DDP was about $1150. This was with the old DDP.
If you take off $8 pp, per meal for the App, the cost would be about $1440. Take off 20% for DDE it would be $1150. But you still have the CS and snack credits to use.
We still think its a good deal for us. Some of the math is fuzzy, but the overall numbers are good for reference.