In a nutshell, no.
You would need to book your package stay through Central Reservations (407) WDW-STAY number. If you did not, then you would not be eligible.
I just finished comparing the new offer with Free Dining for the Deluxe Resorts, (we are staying at BLT in Oct) and I still saved even by paying for my dining. The only way to save with Free Dining is to book a Value and in some seasons a Moderate resort. The new plan only covers QSDP at the Values and you have to pay to upgrade to the Basic or Dlx plans.