What the Heck Is Kingdom Hearts II.8?

Kingdom Hearts II.8 is a ridiculous name, so what's actually inside the package?
Kingdom Hearts II.8 is a ridiculous name, so what's actually inside the package?

Kingdom Hearts 2.8: Final Chapter Prologue by BrokenNoah on DeviantArt

Kingdom Hearts II: Final Mix + - GameSpot

KINGDOM HEARTS HD 2.8 Final Chapter Prologue features 3 magical experiences, all leading up to KINGDOM HEARTS III: KINGDOM HEARTS Dream Drop Distance

KINGDOM HEARTS HD 2.8 Final Chapter Prologue Cloud Version

Kingdom Hearts 2.8 Leaks for Xbox One

Kingdom Hearts II.8 2.8 Final Chapter Prologue Sora and Mickey Disney Pin Rare

KINGDOM HEARTS HD 2.8 Final Chapter Prologue

How on earth is II.8 this much for one remastered 3DS game, a tech demo, and a movie? : r/KingdomHearts

Review: Return of the Keyblade warriors, 'Kingdom Hearts 2.8' – The Tacoma Ledger

Kingdom Hearts HD 2.8 Final Chapter Prologue Review