Today Square Enix announced via press release that the newly released World of Final Fantasy will get a bit of Kingdom Hearts to celebrate the release of KINGDOM HEARTS HD 2.8 Final Chapter Prologue.

Kingdom Hearts protagonist Sora will be available this winter as a DLC for a limited time, and best of all, he will be free.

He will appear as a champion summon  wearing his Kingdom Hearts Dream Drop Distance HD outfit, as you can see below. Further details have been promised for a later date.